1 Corinthians 11:28-29

28 aLet a person examine himself, then, and so eat of the bread and drink of the cup. 29For anyone who eats and drinks without discerning the body eats and drinks judgment on himself.

2 Corinthians 13:5

5Examine yourselves, to see whether you are in the faith. bTest yourselves. Or do you not realize this about yourselves, that cJesus Christ is in you?—unless indeed you fail to meet the test!

Galatians 6:4

4But let each one dtest his own work, and then his reason to boast will be in himself alone and not in his neighbor.
Copyright information for ESV