1 Corinthians 4:4

For I know nothing against myself; yet am I not hereby justified: but he that judgeth me is the Lord.

Psalm 143:2

And enter not into judgment with thy servant: for in thy sight shall no man living be justified.

Psalm 130:3

If thou, LORD, shouldest mark iniquities, O Lord, who shall stand?

2 Corinthians 1:12

For our rejoicing is this, the testimony of our conscience, that in simplicity and godly sincerity, not with fleshly wisdom, but by the grace of God, we have had our manner of life in the world, and more abundantly toward you.

Job 9:2-3

I know it to be so of a truth: but how should man be just with God?

Job 9:20

If I justify myself, my own mouth will condemn me: if I say, I am perfect, that also will prove me perverse.

Job 15:14

What is man, that he should be clean? and he who is born of a woman, that he should be righteous?

Job 25:4

How then can man be justified with God? or how can he be clean that is born of a woman?

Job 27:6

My righteousness I hold fast, and will not let it go: my heart shall not reproach me so long as I live.

Job 40:4

Behold, I am vile; what shall I answer thee? I will lay my hand upon my mouth.

Psalm 7:3-5

O LORD my God, if I have done this; if there is iniquity in my hands;

Psalm 19:12

Who can understand his errors? cleanse thou me from secret faults.

Psalm 26:12

My foot standeth in an even place: in the congregations will I bless the LORD.

Psalm 50:6

And the heavens shall declare his righteousness: for God is judge himself. Selah.

Proverbs 21:2

Every way of a man is right in his own eyes: but the LORD pondereth the hearts.

John 21:17

He saith to him the third time, Simon son of Jonas, lovest thou me? Peter was grieved, because he said to him the third time, Lovest thou me? And he said to him, Lord, thou knowest all things; thou knowest that I love thee. Jesus saith to him, Feed my sheep.

Acts 23:1

And Paul, earnestly beholding the council, said, Men, brethren, I have lived in all good conscience before God until this day.

Romans 2:13

(For not the hearers of the law are just before God, but the doers of the law shall be justified.

Romans 3:19-20

Now we know that whatever things the law saith, it saith to them who are under the law: that every mouth may be stopped, and all the world may become guilty before God.

Romans 4:2

For if Abraham were justified by works, he hath whereof to glory, but not before God.

1 Corinthians 4:5

Therefore judge nothing before the time, until the Lord shall come, who will both bring to light the hidden things of darkness, and will make manifest the counsels of the hearts: and then shall every man have praise from God.

2 Corinthians 5:10

For we must all appear before the judgment-seat of Christ; that every one may receive the things done in his body, according to what he hath done, whether good or bad.

1 John 3:20-21

For if our heart condemneth us, God is greater than our heart, and knoweth all things.

Treasury of Scripture Knowledge

Summary

For I know nothing by myself; yet am I not hereby justified: but he that judgeth me is the Lord.

Bible References

I know

Job 27:6
My righteousness I hold fast, and will not let it go: my heart shall not reproach me so long as I live.
Psalm 7:3
O LORD my God, if I have done this; if there is iniquity in my hands;
John 21:17
He saith to him the third time, Simon son of Jonas, lovest thou me? Peter was grieved, because he said to him the third time, Lovest thou me? And he said to him, Lord, thou knowest all things; thou knowest that I love thee. Jesus saith to him, Feed my sheep.
2 Corinthians 1:12
For our rejoicing is this, the testimony of our conscience, that in simplicity and godly sincerity, not with fleshly wisdom, but by the grace of God, we have had our manner of life in the world, and more abundantly toward you.
1 John 3:20
For if our heart condemneth us, God is greater than our heart, and knoweth all things.

Yet

Job 9:2
I know it to be so of a truth: but how should man be just with God?
Job 15:14
What is man, that he should be clean? and he who is born of a woman, that he should be righteous?
Job 25:4
How then can man be justified with God? or how can he be clean that is born of a woman?
Job 40:4
Behold, I am vile; what shall I answer thee? I will lay my hand upon my mouth.
Psalm 19:12
Who can understand his errors? cleanse thou me from secret faults.
Psalm 130:3
If thou, LORD, shouldest mark iniquities, O Lord, who shall stand?
Psalm 143:2
And enter not into judgment with thy servant: for in thy sight shall no man living be justified.
Proverbs 21:2
Every way of a man is right in his own eyes: but the LORD pondereth the hearts.
Romans 3:19
Now we know that whatever things the law saith, it saith to them who are under the law: that every mouth may be stopped, and all the world may become guilty before God.
Romans 4:2
For if Abraham were justified by works, he hath whereof to glory, but not before God.

General references

Proverbs 20:9
Who can say, I have made my heart clean, I am pure from my sin?
Matthew 7:1
Judge not, that ye be not judged.
Acts 24:16
And in this I exercise myself, to have always a conscience void of offense towards God, and towards men.
1 John 3:21
Beloved, if our heart doth not condemn us, then have we confidence towards God.