1 Timothy 3:9
holding the mystery of the faith in a pure conscience.
1 Timothy 1:19
maintaining faith and a good conscience; which last some, having put away, have made shipwreck as to faith;
1 Timothy 1:5
But the end of what is enjoined is love out of a pure heart and a good conscience and unfeigned faith;
1 Timothy 3:16
And confessedly the mystery of piety is great. God has been manifested in flesh, has been justified in the Spirit, has appeared to angels, has been preached among the nations, has been believed on in the world, has been received up in glory.
2 John 1:9-10
Whosoever goes forward and abides not in the doctrine of the Christ has not God. He that abides in the doctrine, he has both the Father and the Son.