Trinity Episcopal Church will host a "Merrie Mixers" Halloween potluck dinner party at 5 p.m. Sunday. The church is at 14519 Church St., Upper Marlboro. Call 301-627-2636.

Christian Outreach International Center of Deliverance will hold a fellowship union at 7:30 p.m. tomorrow and 10 a.m. Saturday. The center is at 3709 Hamilton St, Hyattsville. Call 301-927-1684.

Mishkan Torah Congregation will host the Diane Kritt Memorial Lecture of the Chesapeake Region of the Jewish Reconstructionist Federation at 7:30 p.m. Sunday. Rabbi Sidney Schwartz will deliver a talk titled "The Future of the American Synagogue." The congregation is at 10 Ridge Rd., Greenbelt. Call 301-474-4223 or visit www.mishkantorah.org.

Hyattsville Mennonite Church will hold a craft sale from 4 to 9 p.m. tomorrow and 9 a.m. to 4 p.m. Saturday. The sale will include baskets, ornaments, toys, jewelry and brassware from the Philippines, El Salvador, Kenya, Bangladesh and India. The church is at 4217 East West Hwy. Call 301-927-7327.

College Park United Methodist Church will hold a flea market from 9 a.m. to 2 p.m. Saturday. Indoor and outdoor space is available. The church is at 9601 Rhode Island Ave., College Park. To rent a table, call 301-474-7874.

New Beginnings Community Church of Mitchellville invites parents and children ages 3 and older to a Halloween alternative called the Harvest of Fun from 6 to 9 p.m. Saturday at Kingsford Elementary School, 1401 Enterprise Rd., Mitchellville. Food, games and prizes will be included. Call 301-249-8715, Ext. 8.

Mowatt Memorial United Methodist Church will host country gospel group BeulahLand at 7:30 p.m. Saturday and 11 a.m. Sunday. The church is at 40 Ridge Rd., Greenbelt. Call 301-577-4673.

Beyond the Veil Worship Center will open its gospel cafe, the Portico, at 7 p.m. Saturday. The event will feature Christian comedian Sean Sarvis, spoken-word lyricist Sheri Booker and musical group 3-in-1. Tickets are $15. The church is at 401 Prince George's Blvd., Upper Marlboro. Call 301-218-7521 or visit www.beyondtheveilministries.org.

Paint Branch Unitarian Universalist Church will celebrate its 50th anniversary with lectures and workshops, including a lecture about the International Criminal Court at 11 a.m. Saturday and a sermon by Jaco B. ten Hove called "Wrestling Less With Angels Than With Prophets" at 10 a.m. Sunday. The church is at 3215 Powder Mill Rd., Adelphi. Call 301-937-3666.

-- Compiled by ARUNA JAIN