Saturday, 10 to 11:45 a.m.: Harold Saunders, director of international affairs at the Kettering Foundation, will speak on “Dimensions of Peace.” Franciscan Monastery, 1400 Quincy St. NE. Free. 202-526-5800, Ext. 374. .

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

Saturday, 2 p.m.: The Kings of Harmony will perform in celebration of Mother’s Day. Southern Friendship Missionary Baptist Church, 4444 Old Branch Ave., Temple Hills. Donations welcome. 301-702-0100.

Saturday, 4 p.m.: The Children’s Chorus of Washington will perform American classics and Broadway favorites by Leonard Bernstein, Aaron Copland and others. National City Christian Church, 5 Thomas Cir. NW. Premium seating, $75; adult $25; CCW alumni, $15; age 11 and younger, $10. 202-237-1005. .

Saturday, 5 to 7 p.m.: A community spaghetti supper will be served, including spaghetti, bread, salad, a beverage and dessert. Children welcome. Christ Episcopal Church, 8710 Old Branch Ave., Clinton. Suggested freewill offering, $10. 301-868-1330 or .

Saturday, 8 p.m.: The Saint Andrew’s Players will perform Oscar Wilde’s short story adaptation, “The Canterville Ghost.” The opening-night dinner theater show will be followed by a reception hosted by the church vestry. St. Andrews Episcopal Church, 4000 Lorcom Lane, Arlington. $15; age 12 and younger, $7.50; reservations required. Jane Massant, 703-241-7586, or .

Sunday, 11 a.m.: Mother’s Day Lakota Mission benefit lunch and music. A variety of buffalo-based plates and alternate choices will be served as Brooklyn-based singer-songwriter Natalie York performs. Proceeds will go to a Lakota summer mission trip to the Pine Ridge Reservation. The Church of the Good Shepherd (United Methodist), 2351 Hunter Mill Rd., Vienna. Reservations requested. 703-281-3987. .

Sunday, noon: Mass of Thanksgiving for Pope John XXIII and Pope John Paul II will be celebrated. Following mass, there will be a procession to the John Paul II Shrine, where the Divine Mercy Chaplet will be recited followed by a blessing with a relic of John Paul II. The Basilica of the National Shrine, 400 Michigan Ave. NE. 202-526-8300. .

Sunday, 2 p.m.: Princeton University’s Anthony Grafton will discuss “Past Belief: Visions of Early Christianity in Renaissance and Reformation Europe” and the roles of Constantine, the first Christian Roman emperor. National Gallery of Art, East Building Auditorium, Fourth Street and Constitution Avenue NW. Free. 202-727-4215.

Sunday, 3 p.m.: In celebration of Mother’s Day, maestro Yosef Yankelev, baritone Shouvik Mondle, tenor Moshe Weisblum and pianist Diane Kinsley will perform selections from Bach to Klezmer. Congregation Kneseth Israel, 1125 Spa Rd., Annapolis. $20. 410-263-3924.

Sunday, 5:15 p.m.: Classical pipe organist Daria Burlak performs works by Charles Tournemire, Olivier Messiaen, Jean-Louis Florentz and Marcel Dupre on the 10,650-pipe great organ. 5:15 p.m., Washington National Cathedral, Great Choir, Wisconsin and Massachusetts avenues NW. Suggested donation, $10. 202-537-6200 or .

Sunday, 7 p.m.: Missionaries of the Washington, D.C., North Mission will offer music and uplifting thoughts to strengthen testimonies. Church of Jesus Christ of Latter-day Saints, Washington, D.C., Temple Visitors Center, 9900 Stoneybrook Dr., Kensington. Free. 301-587-0144.

Monday, 10 a.m.: The Boy and Girl Choristers will sing at the reopening celebration of the Washington Monument following repairs from the August 2011 earthquake that also caused $26 million damage to the National Cathedral. The choristers will sing Canon Michael McCarthy’s arrangement of “My Country ’tis of Thee.” Also on the program will be the U.S. Navy Band, D.C. Mayor Vincent C. Gray, Delegate Eleanor Holmes Norton, Interior Secretary Sally Jewell, National Park Service Director Jonathan B. Jarvis and philanthropist David Rubenstein. The “Today” show’s Al Roker hosts. Washington Monument grounds, near 15th Street and Independence Avenue SW. Free. 202-537-6200. .

Most weekdays, 10:30 a.m.: Behind-the-scenes cathedral tour for ages 11 and older. Look at 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 .

Mondays through June 16, 7 to 9 p.m.: Wisdom and the Book of Ecclesiastes. Cathedral congregation member Harvey Bale will facilitate a discussion of the wisdom found in Ecclesiastes. There will be no class on May 26. Sayre House, on South Road NW, just past Washington National Cathedral, Wisconsin and Massachusetts avenues NW. Free; registration required. . 202-537-6200 or .

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

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. .

Mondays, 7:30 p.m.; Tuesdays, 10:30 a.m., through May 20: Gen Kelsang Varahi, an ordained Buddhist nun, will teach “A New You” in a series exploring meditations and teachings to help people feel more connected to the world around them and to make them able to fulfill their potential for goodness. The hour classes will include teaching, guided meditation and a question-and-answer session. Vajrayogini Buddhist Center, Friendship Terrace (3rd floor lounge), 4201 Butterworth Pl. NW. 202-986-2257. .

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

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

Tuesday, 12:10 p.m.: Daria Burlak, a rising virtuoso keyboardist from Russia, performs a classical program. Church of the Epiphany, 1317 G St. NW. Suggested donation, $10. 202-347-2635, Ext. 20.

Tuesday, 3 to 8 p.m.: A blood drive will be held. Trinity Episcopal Church, 14515 Church St., Upper Marlboro. Free. 301-627-2636.

Tuesdays, 7 to 8:15 p.m.: Zumba classes. Christ Church Chaptico, Parish Hall, 37497 Zach Fowler Rd., Chaptico. $6 per class or get a punch card that charges $5 per visit. Lisa Martoni, 240-925-4153.

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. .

Wednesday, 8 p.m.: Every Wednesday for the next four weeks, a Georgetown University PhD student in theology will lead a discussion on Old Testament parody and subversive messaging with “Jonah, the Laughable Prophet.” Georgetown Presbyterian Church, 3115 P St. NW. 202-338-1644. .

Friday, 10 a.m. to 6 p.m.; Saturday, 8 a.m. to 2 p.m.: The annual “New to You” yard, bake and book sale also will feature items from the Community Craft Collective, a group of women who have experienced homelessness. They will sell their jewelry, knitted and crocheted goods, artisan cards, painted jewelry boxes and more. Bring saleable items to the church no later than noon Wednesday. Bring your own bags to this “cash only” event. St. Columba’s Episcopal Church, Albemarle and 42nd streets NW. 202-363-4119. .

Friday, 12:15 to 1 p.m.: Pipe organist Marvin Mills will perform a lunchtime concert. 12:15-1 p.m., National City Christian Church, 5 Thomas Cir. NW. Free; donations welcome. 202-797-0103.

May 17, 8 a.m. to 2 p.m.: A multicultural community flea market will include bargains, unique items, good food, a “share a prayer” booth, Yarn Ministry creations, Cub and Boy Scout table and more. Oxon Hill United Methodist Church, 6400 Livingston Rd., Oxon Hill. 301-292-4497.

May 17, 10 a.m.: The Rev. Michael Cusato, former director of the Franciscan Institute at St. Bonaventure University, will discuss “From Conversion to Conciliation: The Mission of Francis of Assisi and His Followers in a Hallowed Land.” Franciscan Monastery of the Holy Land, 1400 Quincy St. NE. Free. 202-526-6800, Ext. 374. .

May 17, 10 a.m. to 2 p.m.: The annual Biker Blessing will be followed by food, live music, table tennis, a wheelie machine, moon bounce, giveaways and photographs of riders and their bikes. Crossover Church, 5340 Baltimore Ave., Hyattsville. Free. 301-927-5620. .

May 17, 11 a.m.: Help alleviate hunger by participating in the annual CROP (Communities Responding to Overcome Poverty) Walk and food drive, an activity of Church World Service. Line up your sponsoring donors before the day of the event, then start walking from wherever you are in the city and meet up with teams from across the District at Franklin Square, between K and I and 13th and 14th streets NW. Bring canned goods for the Capital Food Bank. Registration required. .

May 17, Noon to 4 p.m.: Monsignor James Watkins invites everyone to come to a Shaw neighborhood block party and celebration of the parish’s 150th anniversary. There will be food and beverages, snow cones, cotton candy, craft vendors, clowns, face painting, a puppet show and other children’s activities, live music and entertainment. Immaculate Conception Church, Eighth and N streets NW. Free. 202-332-8888.

May 17, 1:15 p.m.: Ride your bike with “Bishop Mariann.” The group of riders, led by Bishop Mariann Edgar Budde, will leave St. Dunstan’s Episcopal Church at 1:15 p.m. or meet at 2 p.m. at the Lincoln Memorial. The tour of the Mall monuments continues after a stop for a blessing of the bikes at the Lincoln Memorial. After a few more stops, the group will ride back to St. Dunstan’s. The church is at 5450 Massachussetts Ave., Bethesda. Free. Information: Fred Smoak, .

May 17, 1:30 to 5 p.m.: Strawberry Festival. Live music, games for kids, artists and crafters, strawberry shortcake with “the works,” ice cream and strawberry pies. Mike’s barbecue with all the trimmings will be served. Christ Episcopal Church, 37497 Zach Fowler Rd., Chaptico. 301-884-3451.

May 17, 2 to 4 p.m.: The Episcopal Church Women invite everyone to a Spring Tea. Chocolate fondue, fresh fruits and vegetable trays, quiche, tea sandwiches and sweets and a variety of teas will be served. St. Matthew’s Episcopal Church, Parish Hall/Salon, 5901 36th Ave., Hyattsville. $15; age 11 and younger, $5. 301-559-8686 or .

May 17, 5 p.m.: Bring a dish to share with others at the Community International Dinner, a potluck supper. International entertainment, drinks and paper goods will be supplied by the church. Knox Presbyterian Church, 7416 Arlington Blvd., Falls Church. Free-will offering. 703-560-5288 or .

May 17, 7 p.m.: Vocalists Bernadette and Winston Charles will perform inspirational, classical and gospel music. Church of Jesus Christ of Latter-day Saints, Washington, D.C., Temple Visitors Center, 9900 Stoneybrook Dr., Kensington. Free. 301-587-0144.

May 17, 7 p.m.: Brass of Peace, a 15-member ensemble, will perform. Holy Trinity Lutheran Church, 3022 Woodlawn Ave., Falls Church. 703-532-6617, or .

— Compiled by Gerri Marmer

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