A.T. Robertson Commentary 1 Timothy 3:9

"holding the mystery of the faith in a pure conscience." — 1 Timothy 3:9 (ASV)

The mystery of the faith (το μυστηριον της πιστεως). "The inner secret of the faith," the revelation given in Christ. See for μυστηριον in Paul (2 Thessalonians 2:7; 1 Corinthians 2:7; Romans 16:25; Colossians 1:26; Ephesians 3:9).

In a pure conscience (εν καθαρα συνειδησε). See 1:19. "The casket in which the jewel is to be kept" (Lock).