Washington National Cathedral invites you to view “Meditation on Mourning,” a special Lenten exhibit of sculptures by artist S.B. Woods. The work features female figures covered in shrouds, representing grief over all who have been killed by gun violence. Woods created the artwork after the Sept. 11 attacks and subsequently donated it to the Newtown Foundation to commemorate the victims of the December 2012 shooting of children and adults at the Connecticut school. The exhibit is open daily during cathedral hours through April 10. Washington National Cathedral, Front Nave, Wisconsin and Massachusetts avenues NW. Free. 202-537-6200 or www.nationalcathedral.org.

Saturday, noon: “The Invention of Wings,” a book discussion and luncheon is planned. The work of historical fiction was written by Sue Monk Kidd and features two abolitionist sisters, Sarah and Angelina Grimke, who become friends with Hester, a young “gifted” slave. Sarah and Angelina were the real-life aunts of the Rev. Francis Grimke, the pastor of the 15th Street Presbyterian Church for 50 years and founder of Dunbar High School, the country’s first public high school for black students. 15th Street Presbyterian Church, 15th and R streets NW. Reservations encouraged; 202-234-0300 or www.­15thstpresbyterian.org.

Saturday, 12:30 p.m.: Weekly carillon recital by Edward M. Nassor. Washington National Cathedral, Bishop’s Garden, Wisconsin and Massachusetts avenues NW. Free. 202-537-6200 or www.nationalcathedral.org.

Saturday, 3 to 6 p.m.: “Group of Four,” a large-format photography color and black-and-white exhibit opens, with works by George L Smyth, Barry Schmetter, D.B. Stovall and Scott Davis. On view from 10 a.m. to 4 p.m. weekdays through May 4. River Road Unitarian Universalist Congregation, Fellowship Hall, 6301 River Rd., Bethesda. 301-229-0400. www.rruuc.org.

Saturday, 3 p.m.: The Sound of Hope, a special worship service exploring messages of justice, love and hope, sung by the combined choirs of Unitarian Universalist congregations in the D.C. area. The singers will perform the world premiere of a newly commissioned choral work by Jim Papoulis and works by Ysaye M. Barnwell, Tom Benjamin, Pepper Choplin, Clif Hardin and others. All Souls Church Unitarian, 1500 Harvard St. NW. Free. Mark Vogel, mvogel@uucf.org . 703-476-3461.

Saturday, 7:30 p.m.: Pianist Frank Wiens will perform works by Brahms, Faure, Liszt, Mendelssohn and Rachmaninoff. Paint Branch Unitarian Universalist Church, 3215 Powder Mill Rd., Adelphi. Donations appreciated. 301-937-3666. www.PBUUC.org.

Sunday, 10 a.m.: Parenting in a warming world: a climate-change workshop for families to learn simple, practical strategies to live sustainably at home and beyond. Featuring age-appropriate, environmental-themed activities; for parents, local experts explain how to get involved and hot to help children cultivate an optimistic and pro-active environmental outlook as they grow. Co-sponsored by Interfaith Power & Light. Washington D.C. Jewish Community Center, 1529 16th St. NW. $15; workshop only, $5. MiriamS@washingtondcjcc.org or 202-777-3263.

Sundays through April 13, 10 a.m.: Special Lenten sermon series based on Adam Hamilton’s book “24 Hours That Changed the World,” about his travels in the Holy Land and elsewhere. The book helps readers experience the final day of Jesus’s life and understand its significance. Concord-St. Andrew’s United Methodist Church, 5910 Goldsboro Rd., Bethesda. 301-229-5225.

Sunday, 10:10 a.m.: Lenten Bible study. Cathedral clergy invite you to bring a Bible to follow along with an address on the day’s scripture readings, Exodus 17:1-7, Psalm 95, Romans 5:1-11 and John 4:5-42. Washington National Cathedral, Bethlehem Chapel, Wisconsin and Massachusetts avenues NW. Free. 202-537-6200 or www.nationalcathedral.org.

Sunday 1 to 3 p.m.: Historian Anthony Cohen will perform “The Underground Railroad,” a dramatic narrative tracing the footsteps of runaway slaves along wilderness trails and waterways to fugitive slave communities and Quaker sanctuaries. The program also includes the Howard University Gospel Choir performing songs of the Underground Railroad, directed by Reginald Golden. A light lunch and dessert reception are included in the ticket price. Proceeds go to college scholarships for minority students. River Road Unitarian Universalist Congregation, RRUUC, 6301 River Rd., Bethesda. $30; ages 13-18, $15; families up to two adults and children, $60. www.rruuc.org. 301-229-0400.

Sunday 2-7 p.m.: 37th Annual Bach Marathon. Ten organists perform the chorales contained in the “Newmeister Chorales,” discovered in 1984 in the Yale University Library, in half-hour segments on the church’s three-manual, 50-rank, 2500-pipe Rieger tracker organ. Come when you can, leave when you must. Julie Vidrick Evans, J.Reilly Lewis, Marvin Mills, Christopher Betts, Ronald Stolk, Michael Lodico, Jonathan Schakel, Thomas Mitts, David Schelat and Jeff Kempskie will perform. A German dinner follows. Chevy Chase Presbyterian Church, One Chevy Chase Cir. NW. Donations appreciated. 202-363-2202. www.chevychasepc.org.

Sunday, 2:30 to 4:30 p.m.: The fourth of six sessions on Israel. Other sessions are scheduled Sundays through April 6. United Christian Parish, 11508 North Shore Dr., Reston. 703-620-3065. www.unitedchristianparish.org.

Sunday, 3 to 5 p.m.: The Great Names Community Lecture series starts with a presentation by Marvin Kalb and his daughter, Deborah, co-authors of “Haunting Legacy: Vietnam and the American Presidency from Ford to Obama.” A question-and-answer session follows. Subsequent appearances include Steve Luxenberg, author of “Annie’s Ghost: A Journey Into a Family Secret,” in June. Bethesda Jewish Congregation, 6601 Bradley Blvd., Bethesda. Free. Robin Sorkin, 301-320-0367. twizcurl@aol.com .

Sunday, 4 p.m.: Schola Cantorum will lead solemn Gregorian vespers, sung in Latin with Renaissance and later motets. St. Matthew’s Cathedral, 1725 Rhode Island Ave. NW. Free-will offering. 202-587-5141. www.stmatthewscathedral.org.

Sunday, 4 p.m.: Choralis and organist Todd Fickley perform Durufle’s “Requiem” and other works. National Presbyterian Church, 4101 Nebraska Ave. NW. $30-$45; ages 23-29, $20; students, $5; age 12 and younger, free. www.choralis.org. 703-237-2499.

Sunday, 5:15 p.m.: Classical pipe organist Nicholas Bideler performs works by Dietrich Buxtehude, Georg Bohm, J.S. Bach, Jehan Alain and Louis Vierne on the 10,650-pipe great organ. Washington National Cathedral, Great Choir, Wisconsin and Massachusetts avenues NW. Suggested donation, $10. 202-537-6200 or www.nationalcathedral.org.

Most weekdays, 10:30 a.m.: Behind-the-scenes cathedral tour for ages 11 and older. See gargoyles and stained-glass windows and climb a lot of stairs to view the city from on high. Washington National Cathedral, Wisconsin and Massachusetts avenues NW. $25; children, seniors, students and military, $21. 202-537-6200 or www.nationalcathedral.org.

Mondays through April 14, 5 to 9 p.m.: Tax preparation assistance. Sponsored by the AARP Foundation, for seniors and low- to moderate-income taxpayers, including Spanish speakers. Colesville Presbyterian Church, 12800 New Hampshire Ave., Silver Spring. Free; registration required. 240-777-2577, weekdays 9:30 a.m. to 3:30 p.m.

Monday, 7 p.m.: Bible study. Wesley United Methodist Church, Fellowship Hall, 5312 Connecticut Ave. NW. Free. 202-966-5144. www.wesleydc.org.

Most Mondays, 7 p.m.: Sally Jones leads “A Course in Miracles.” Davies Memorial Unitarian Universalist Church, 7400 Temple Hills Rd., Camp Springs. Free. 301-449-4308. www.dmuuc.org.

Tuesdays and Thursdays, 9:15 to 10 a.m.: Senior Fit, ongoing exercise class for age 55 and older to build strength, fitness and cardiovascular health. Participation requires physician consent form, available at the Info Center or by visiting www.mystandrew.org. The Lutheran Church of St. Andrew, 15300 New Hampshire Ave., Silver Spring. Free. Call Marilee, 301-384-4394.

Tuesdays, 10:45 a.m.: A docent leads a “spiritual reflections” tour depicting stories of faithful action and devotion highlighted in the building’s glass and stone. Tours offer story, silence, poetry, prayer and reflective invitations, including one to attend Eucharist at noon. Participants will receive a pilgrimage medallion. Tours do not take place on holidays or during special events. Washington National Cathedral, Wisconsin and Massachusetts avenues NW. $15. 202-537-6200 or www.nationalcathedral.org.

Tuesday, 12:10 p.m.: J.Reilly Lewis conducts the Washington Bach Consort and organist Neil Weston in works by J.S. Bach. Church of the Epiphany, 1317 G St. NW. Suggested donation, $10. 202-347-2635, Ext. 20.

Tuesday and Wednesday, 1:30 p.m.: A docent-led tour of highlights of the Washington National Cathedral, its history, architecture and artworks — plus a traditional English tea, a celebration of the city’s cherry blossoms and a view of the city from the cathedral tower. Washington National Cathedral, Docent Station at the Rear Nave, Wisconsin and Massachusetts avenues NW. $30; reservations required. 202-537-8993, www.allhallowsguild.org or misbister@cathedral.org .

Tuesday, 5:15 p.m.: A Lenten Reflection Series follows the regular 5:15 p.m. Mass. George Weigel, Distinguished Senior Fellow and William E. Simon Chair in Catholic Studies of the Ethics and Public Policy Center, will present “Lent: An Itinerary of Conversion.” All are welcome. Basilica of the National Shrine of the Immaculate Conception, 400 Michigan Ave. NE. Free. 202-526-8300. www.nationalshrine.com/lent.

Tuesdays, 7 to 8:30 p.m.: Homework Helpers invites parents or guardians to bring their children in grades one to eight for free tutoring, advice and homework help. St. John’s Church-Broad Creek, St. John’s Bayne Hall, 9801 Livingston Rd., Fort Washington. Free. Registration: Ruth LaBelle, program director, 240-461-5330 or hwhelpers@stjohnsbroadcreek.org .

Tuesdays 7-9 p.m.: “Passages,” a 14-week “DivorceCare” series for those experiencing separation or divorce. Vienna Presbyterian Church, Maple Avenue and Park Street, Vienna. Materials cost, $20; scholarships available. Register at 703-938-9050 or Passages@ViennaPres.org or www.viennapres.org.

Wednesday, 7 a.m. to 6:30 p.m.: Lenten Quiet Day: silent prayer, reflection, yoga and mindfulness meditation to reconnect with ourselves and to deepen our connection to God. A free gentle-yoga class will begin at 11 a.m. in the atrium. Reservations are encouraged. A light lunch will be served at noon. Reservations are encouraged but not required. Wednesday Night Together dinner will start at 5:45 p.m. and is followed by evening meditation with Communion at 6:30 p.m. Annandale United Methodist Church, 6935 Columbia Pike, Annandale. Reservations: Joyce Kitzmiller, jkitzmiller@annandale-umc.org or 703-256-8330.

Wednesday, 12:10 to 12:45 p.m.: The U.S. Air Force Strings, conducted by Shanti Nolan and accompanied by organist Michael Lodico, perform Francois Poulenc’s “Organ Concerto.” St. John’s Church, Lafayette Square at the corner of 16th and H streets NW. Free; wheelchair accessible. 202-347-8766 or www.stjohns-dc.org/.

Wednesday, 5:15 p.m.: A Lenten Reflection Series follows 5:15 p.m. Mass. Brother Robert Bimonte, president of the National Catholic Educational Association, will present “Encountering Jesus in Word, Sacraments and Works of Charity.” Basilica of the National Shrine of the Immaculate Conception, 400 Michigan Ave. NE. Free. 202-526-8300. www.nationalshrine.com/lent.

Wednesdays through April 9, 7 p.m.: Lenten Midweek Worship. Come to explore five age-old Spiritual Practices: prayer, fasting, confession, giving and worship to discover faith beyond what you think, and meaning far more than you can imagine.

Wednesdays, 6 p.m.: Weekly Bible study. Calvary Episcopal Church, 509 I St. NE. Free. 202-546-8011.

Wednesdays, 6:30 p.m.: Open prayer service. Communion follows. Franconia United Methodist Church, 6037 Franconia Rd., Alexandria. 703-971-5151. www.franconiaumc.org.

Wednesdays, 7 p.m.: Art and spirit coffeehouse welcome Spring with the Bethesda Chamber Singers. The diverse program includes Marian Hymns from the 16th, 17th and late 20th centuries, Ivor Davies’s setting of Carmen Bernos de Gastzold’s “Prayers From The Ark,” madrigals, and songs from the American Songbook. Coffee and desserts, followed by Q&A session. St. Augustine’s Episcopal Church, Sixth Street and Maine Avenue SW. Free, donations welcome. rector@staugustinesdc.org . 202-554-3222 or www.staugustinesdc.org.

Thursday, 3 p.m. and Sunday, 1:30 p.m.: 20th Century American Gothic architecture tour of National Cathedral for age 10 and older. A docent leads a tour to view the Gothic artisanship of carvers, weavers, stained-glass artists and others and learn about the building’s Gothic style, its characteristics, purposes and building methods. Washington National Cathedral, main entrance welcome desk, Wisconsin and Massachusetts avenues NW. $20; children, seniors, military and students, $16. Reservations suggested. 202-537-6200 or www.nationalcathedral.org.

Thursday, 8 p.m.: The Catholic University of America University Chorus, the Upper School Chorus of the Brookewood School and the Sanctuary Choir of St. Paul’s United Methodist Church, under the direction of N. Thomas Pedersen, head of Musical Theatre Division, will perform Schubert’s Mass in G and other works. St. Paul’s United Methodist Church, 10401 Armory Ave., Kensington. Free-will offering will support the church’s hunger ministries. 202-319-5416.

Friday, 12:15 to 1 p.m.: Pipe organist Gregory Hooker performs works by J.S. Bach, Charles-Marie Widow and Dupré. National City Christian Church, 5 Thomas Cir. NW. Free, donations welcome. 202-797-0103.

Friday 4 to 7 p.m.: Fish fry: fried whiting or tilapia with green beans, cole slaw, bread, beverage and dessert. Trinity Church Hall, 14515 Church St., Upper Marlboro. $10; ages 11 and younger, $5. 301-627-2636.

Fridays, 6 to 8 p.m.: Women’s Alcoholics Anonymous meeting. St. Mark’s Episcopal Church, Third and A streets SE. Free. 202-543-0053.

Friday, 6:30 p.m.: Southwest church potluck and game night, for all ages. Bring a potluck dish for dinner, 6:30 p.m. Board and card games provided, but you may bring your own games to play, 7 p.m. St. Augustine’s Episcopal Church, Sixth Street and Maine Avenue SW. Free. rector@staugustinesdc.org . 202-554-3222. www.staugustinesdc.org.

Friday, 8 p.m.: Pablo Saelzer conducts the Avanti Orchestra in a performance of Brahms’s Hungarian Dances Nos. 11-16 and other works. NW. Suggested donation, $10. 703-243-7047. http://fmmc.org.

April 5, 8 to 10:30 a.m.: An all-you-can-eat community pancake breakfast; regular and oatmeal pancakes. Proceeds go to West River United Methodist Center and St. Paul’s Hunger Ministry. St. Paul’s United Methodist Church, 10401 Armory Ave., Kensington. $6.50; 11 and younger, $2; family price, $18. 301-933-7933.

April 5, 10:15 a.m.-noon: Jewish Mindfulness Gathering led by Rabbi Mark Novak and others. Tea will be served. Chevy Chase Presbyterian Church, 1 Chevy Chase Cir. NW. (Enter on Chevy Chase Parkway next to playground.) Free. 202-362-3270.

April 5, 2 p.m.: “Thomas Merton and Buddhism.” Abbot James Wiseman, retired professor of theology at Catholic University, discusses the three main branches or lineages of Buddhism, Theravada, Mahayana, including Zen and Vajrayana. A discussion and reception follow. St. Anselm’s Abbey, School Auditorium, 4501 South Dakota Ave. NE. Free-will offering. tmsociety@fastmail.fm or 202-269-2300.

April 5, 7 to 10 p.m.: In the Name of Love: A Jazz Poetry Slam. Join poets from around the region as they compete for prize money. Proceeds benefit Opportunities, Alternatives, and Resources (OAR) of Fairfax, whose mission is to rebuild lives and break the cycle of crime with opportunities, alternatives and resources for offenders and their families to create a safer community. Jazz performed by students from George Mason University School of Music. Refreshments available for purchase. Accotink Unitarian Universalist Church, 10125 Lakehaven Dr., Burke. Rev. Scott Sammler-Michael, 703-503-4579. www.accotinkuuc.org.

April 5, 7:30 p.m.: Catholic University students studying in the composition division will perform newly composed student works. Catholic University, Ward Recital Hall, 620 Michigan Ave. NE. Free. 202-319-5416.

April 5, 7:30 p.m.: The Thirteen Chamber Choir performs baroque and Renaissance music in its final concert of the season. The 13-personspecializing in early music will also perform in the Sunday worship at 10:30 a.m., collaborating with the Bradley Hills Chancel Choir and Orchestra of the Hills, with Matthew Robertson conducting Johann Sebastian Bach’s Cantata Aus der Tiefen BWV 131. Bradley Hills Presbyterian Church, 6601 Bradley Blvd., Bethesda. Saturday concert: $20; seniors and students, $15. A reception follows. 301-515-6365.

— Compiled by Gerri Marmer

Send event name, dates, times, exact address, prices and a publishable telephone number at least one week before our Saturday publication day to Religion Events, The Washington Post, 1150 15th St. NW, Washington, D.C. 20071; or e-mail rpevents@washpost.com .