Ecclesiastes 7:19-22 - Wisdom Is Valuable, But No One Is Completely Righteous
19 Wisdom is a strength to the wise man more than ten rulers that are in a city. 20 Surely there is not a righteous man upon earth, that doeth good, and sinneth not.
21 Also take not heed unto all words that are spoken, lest thou hear thy servant curse thee; 22 for oftentimes also thine own heart knoweth that thou thyself likewise hast cursed others.