§ 18.2-283. Carrying dangerous weapon to place of religious worship.
If any person carry any gun, pistol, bowie knife, dagger or other dangerous weapon, without good and sufficient reason, to a place of worship while a meeting for religious purposes is being held at such place he shall be guilty of a Class 4 misdemeanor.
(Code 1950, § 18.1-241; 1960, c. 358; 1962, c. 411; 1975, cc. 14, 15.)
http://leg1.state.va.us/cgi-bin/legp504.exe?000+cod+18.2-283
The language about good and sufficient reason is not very clear. Pro-gunners consider carrying for personal safety good and sufficient reason, whereas a cop or court might not.