'That Which Is Good' in the Bible

Was then that which is good made death to me? God forbid: But sin: so that it appeared sin, working death in me by that which is good: so that sin might by the commandment become exceeding sinful.

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 evil. Wouldest thou then not be afraid of the power? do that which is good, and thou shalt have praise from it; for he is the servant of God to thee for good.

For your obedience is come abroad unto all men. I rejoice therefore on your behalf; but I would have you wise with regard to that which is good, and simple with regard to that which is evil.