2 Corinthians 13:5
It is yourselves you must test, to see whether you are holding to the faith. It is yourselves you must examine. Do you not know that Jesus Christ is within you? Unless you fail to stand the test!
Acts 26:20
but first to the people of Damascus and Jerusalem and then all over Judea, and even to the heathen I preached that they must repent and turn to God and live as men who have repented should.
1 Corinthians 11:28
A man should examine himself, and only when he has done so should he eat any of the bread or drink from the cup.
1 Corinthians 11:31
But if we recognized our own condition, we would not incur this judgment.