Del. Walter E. Fauntroy, the District's nonvoting delegate in Congress and pastor of New Bethel Baptist Church, on "South Africa," at a vespers service and symposium, 5 p.m. tomorrow, Augustana Lutheran Church, New Hampshire Avenue and V Street NW.

Linda Chavez, staff director of the U.S. Commission on Civil Rights, on "Comparable Worth," breakfast at 10 a.m. tomorrow, lecture at 10:45 a.m., Beth Sholom Congregation, 13th Street and Eastern Avenue NW. Cost $6, $3.50 lecture only.

Mark Talisman, instructor at Harvard University's Kennedy Institute of Politics, on "The Jewish Agenda: 1985," at a program for young professionals, 6 p.m. Wednesday, D.C. Jewish Community Center, 2027 Massachusetts Ave. NW. Cost $10, $8 for center members. Reservations required; call 323-8087.

The Rev. Ernest Gibson, executive director of the Council of Churches of Greater Washington, on "Liturgical Prayer and Private Prayer in Congregational Protestantism," 8:30 p.m. Friday, Temple Sinai, 3100 Military Rd. NW. MUSIC

Local chapters of the American Guild of Organists, recreation of Bach's "St. Thomas Epiphany Vespers" and other works of Bach, 3:30 p.m. tomorrow, United Church, 1920 G St. NW.

Violinist Pavel Pekarsky, works of Heifitz and Oistrakh, 3 p.m. tomorrow, Temple Sinai, 3100 Military Rd. NW. Admission by contribution.

Harding University Chorale, religious music, 6:45 p.m. tomorrow, Silver Spring Church of Christ, 100 E. Franklin Ave.

Tenor Josue Bustos, songs of Norman Della Joio and John Duke, 12:05 p.m. tomorrow, Westmoreland Congregational United Church of Christ, Bethesda.

Organist John Hurd, vespers with music of Bach, Handel and Clerambault, 5:30 p.m. tomorrow, Grace Church, 1041 Wisconsin Ave. NW.

Orpheus Choir of Olivet Nazarene College, choral prelude, 10:30 a.m. tomorrow, Washington Cathedral, Wisconsin and Massachusetts avenues NW. COURSES

"Christian Unity," a six-week course for women, beginning at 5:45 p.m. tomorrow, Our Lady of Mercy School, 9200 Kentsdale Dr., Potomac; or beginning at 5:45 p.m. Tuesday, Gaithersburg Presbyterian Church, 610 S. Frederick Ave. Sponsored by The Word of Life Bible Study. Cost $15 per session. Call 330-4135.