Fed. R. Evid. 610
Religious Beliefs or Opinions
Evidence of a witness’s religious beliefs or opinions is not admissible to attack or support the witness’s credibility.
( Pub. L. 93–595, § 1 , Jan. 2, 1975 , 88 Stat. 1936 ; Mar. 2, 1987 , eff. Oct. 1, 1987 ; Apr. 26, 2011 , eff. Dec. 1, 2011 .)