Thematic Bible: Who not to partake with

Be sure of this, that no one guilty of sexual vice or impurity or lust (that is, an idolater) possesses any inheritance in the realm of Christ and God. Let no one deceive you with specious arguments; these are the vices that bring down God's anger on the sons of disobedience. So avoid the company of such men.

After that I saw another angel descend from heaven, great in might; his radiance lit up the earth, and he shouted aloud with a strong voice, "Fallen, fallen is Babylon the great, now she is a haunt of demons, the den of all foul spirits, a cage for every foul and loathsome bird: for all nations have drunk the wine of the passion of her vice, the kings of the earth have committed vice with her, and by the wealth of her wantonness earth's traders have grown rich." read more.
And I heard another voice from heaven crying, "Come out of her, O my people, that you share not her sins, that you partake not of her plagues: for high as heaven her sins are heaped, and God calls her misdeeds to the reckoning.