Evil is as utterly different from good as light from darkness

For of this much you can be certain: that neither the immoral nor the dirty-minded nor the covetous man (which latter is, in effect, worshipping a false god) has any inheritance in the kingdom of Christ and of God. Don’t let anyone fool you on this point, however plausible his argument. It is these very things which bring down the wrath of God upon the disobedient. Have nothing to do with men like that—once you were “darkness” but now you are “light”. Live then as children of the light. The light produces in men quite the opposite of sins like these—everything that is wholesome and good and true. Let your lives be living proofs of the things which please God. Steer clear of the activities of darkness; let your lives show by contrast how dreary and futile these things are. (You know the sort of things I mean—to detail their secret doings is really too shameful). For light is capable of “showing up” everything for what it really is. It is even possible (after all, it happened to you!) for light to turn the thing it shines upon into light also. Thus God speaks through the scriptures: “Awake, you who sleep, arise from the dead, and Christ will give you light.”