Ecclesiastes 7:19-22 - Wisdom Is Valuable, But No One Is Completely Righteous
19 Wisdom strengtheneth the wise more than ten mighty men which are in the city. 20 For there is not a just man upon earth, that doeth good, and sinneth not.
21 Also take no 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.