1 Corinthians 4:4

(for I am conscious to myself of nothing; though I am not hereby justified;) but He that judgeth me is the Lord.

James 3:2

and if any offend not in word, he is a compleat man, able to manage also the whole body.

1 John 1:8-10

If we say that we have no sin, we deceive ourselves, and the truth is not in us.

Treasury of Scripture Knowledge

Summary

Who can say, I have made my heart clean, I am pure from my sin?

Bible References

General references

1 Corinthians 4:4
(for I am conscious to myself of nothing; though I am not hereby justified;) but He that judgeth me is the Lord.
James 3:2
and if any offend not in word, he is a compleat man, able to manage also the whole body.
1 John 1:8
If we say that we have no sin, we deceive ourselves, and the truth is not in us.