1 Corinthians 11:28
But let a man examine himself, and so let him eat of that bread, and drink of that cup.
And see if there be any wicked way in me, and lead me in the way everlasting.
Search me, O God, and know my heart: try me, and know my thoughts:
How many are mine iniquities and sins? make me to know my transgression and my sin.
Examine me, O LORD, and prove me; try my reins and my heart.
2 Corinthians 13:5
Examine yourselves, whether ye be in the faith; prove your own selves. Know ye not your own selves, how that Jesus Christ is in you, except ye be reprobates?
The heart is deceitful above all things, and desperately wicked: who can know it?
Stand in awe, and sin not: commune with your own heart upon your bed, and be still. Selah.
I call to remembrance my song in the night: I commune with mine own heart: and my spirit made diligent search.
Search me, O God, and know my heart: try me, and know my thoughts: And see if there be any wicked way in me, and lead me in the way everlasting.
I thought on my ways, and turned my feet unto thy testimonies.
But let every man prove his own work, and then shall he have rejoicing in himself alone, and not in another.