2 Bible Verses about Things As Witnesses

In doing this [i.e., practicing some of the requirements of the law of Moses], they demonstrate that these requirements are written in their hearts. Their conscience tells them this, and their thoughts alternately accuse them [of wrongdoing], or else endorse them [for doing right]).

For this is what we boast of: Our conscience testifies that we have conducted ourselves in the world, and especially toward you, in holiness and godly sincerity, not with human wisdom, but with the favor of God.