'Conscience' in the Bible

For our reason for confidence is this: the testimony of our conscience, that with pure motives and sincerity which are from God -- not by human wisdom but by the grace of God -- we conducted ourselves in the world, and all the more toward you.

But we have rejected shameful hidden deeds, not behaving with deceptiveness or distorting the word of God, but by open proclamation of the truth we commend ourselves to everyone's conscience before God.