THE LAW OF CHARITY
Not to do evil to the neighbor is the first thing of charity, and to do good to him fills the second place.... That a man cannot do good which in itself is good before evil has been removed, the Lord teaches in many places: "Do men gather grapes of thorns, or figs of thistles? Neither can a corrupt tree bring forth good fruit"—Matt. XVI, 18.
So in Isaiah: "Wash you, make you clean; put away the evil of your doings from before Mine eyes; cease to do evil; learn to do well" (I, 16,17).
—True Christian Religion, n. 445