Reinhold Niebuhr gives us this reality needing to be addressed:
No amount of evidence to the contrary seems to shake man’s grand opinion of himself.
Proverbs 20:6 addresses it further:
Every man proclaims his own goodness.
Isaiah 66:2 resolves this for us:
This is the one to whom I will look; he who is humble and contrite in spirit, and trembles at My word.