'That Which Is Good' in the Bible

Was then that which is good made death to me? By no means. But sin, that it might appear sin, working death in me by that which is good; that sin by the commandment might become exceeding sinful.

For I know that in me (that is, in my flesh,) dwelleth no good thing: for to will is present with me; but how to perform that which is good, I find not.

Let love be without dissimulation. Abhor that which is evil; cleave to that which is good.

For rulers are not a terror to good works, but to the evil. Wilt thou then not be afraid of the power; do that which is good, and thou shalt have praise from the same:

For your obedience is come abroad to all men. I am glad therefore on your behalf: but yet I would have you wise to that which is good, and simple concerning evil.