1 Corinthians 4:4

For while my conscience does not trouble me at all, that does not prove that I am innocent. It is the Lord who must examine me.

James 3:2

For we all make many mistakes. Anyone who never makes a mistake in what he says has a character that is fully developed and is able to control his whole body as well.

1 John 1:8-10

If we say, "We are without any sin," we are deceiving ourselves, and there is no truth in our hearts.

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 while my conscience does not trouble me at all, that does not prove that I am innocent. It is the Lord who must examine me.
James 3:2
For we all make many mistakes. Anyone who never makes a mistake in what he says has a character that is fully developed and is able to control his whole body as well.
1 John 1:8
If we say, "We are without any sin," we are deceiving ourselves, and there is no truth in our hearts.