Christians, we should keep ourselves in constant check…

Save me, O God, by thy name, and judge me by thy strength. Psalms 54:1

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? 2 Corinthians 13:5

But let a man examine himself, and so let him eat of that bread, and drink of that cup. For he that eateth and drinketh unworthily, eateth and drinketh damnation to himself, not discerning the Lord's body.  For this cause many are weak and sickly among you, and many sleep. For if we would judge ourselves, we should not be judged. But when we are judged, we are chastened of the Lord, that we should not be condemned with the world. 1 Corinthians 11:28-32

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. Psalms 139:23-24

Let us search and try our ways, and turn again to the LORD. Let us lift up our heart with our hands unto God in the heavens. Lamentations 3:40-41

Judge me, O LORD; for I have walked in mine integrity: I have trusted also in the LORD; therefore I shall not slide. Examine me, O LORD, and prove me; try my reins and my heart. Psalms 26:1-2

I thought on my ways, and turned my feet unto thy testimonies. Psalms 119:59

The LORD shall judge the people: judge me, O LORD, according to my righteousness, and according to mine integrity that is in me. Oh let the wickedness of the wicked come to an end; but establish the just: for the righteous God trieth the hearts and reins. My defence is of God, which saveth the upright in heart. God judgeth the righteous, and God is angry with the wicked every day. Psalms 7:8-11

Judge me, O God, and plead my cause against an ungodly nation: O deliver me from the deceitful and unjust man. Psalms 43:1

Stir up thyself, and awake to my judgment, even unto my cause, my God and my Lord. Judge me, O LORD my God, according to thy righteousness; and let them not rejoice over me. Psalms 35:23-24

If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness. 1 John 1:9