Wisdom is a kindly spirit and will not free a blasphemer from the guilt of his words; because God is witness of his inmost feelings, and a true observer of his heart, and a hearer of his tongue. Because the Spirit of the Lord has filled the world, and that which holds all things together knows what is said. -- Wisdom 1:6-7
For the whole law is fulfilled in one word, "You shall love your neighbor as yourself." But if you bite and devour one another take heed that you are not consumed by one another. (Galatians 5:14-15)
