Eat not the things that are unclean.

Leviticus 11:43 Do not defile your souls, nor touch aught thereof, lest you be unclean,

Leviticus 20:25 Therefore do you also separate the clean beast from the unclean, and the clean fowl from the unclean. Defile not your souls with beasts, or birds, or any things that move on the earth, and which I have shewn you to be unclean:

Isaiah 65:4 That dwell in sepulchres, and sleep in the temple of idols: that eat swine's flesh, and profane broth is in their vessels.

Ezekiel 4:14 And I said: Ah, ah, ah, O Lord God, behold my soul hath not been defiled, and from my infancy even till now, I have not eaten any thing that died of itself, or was torn by beasts, and no unclean flesh hath entered into my mouth.

Acts 10:12-14 Wherein were all manner of four-footed beasts and creeping things of the earth and fowls of the air. . . .

Romans 14:14 I know, and am confident in the Lord Jesus, that nothing is unclean of itself: but to him that esteemeth any thing to be unclean, to him it is unclean.

1 Corinthians 10:28 But if any man say: This has been sacrificed to idols: do not eat of it, for his sake that told it and for conscience' sake.

Titus 1:15 All things are clean to the clean: but to them that are defiled and to unbelievers, nothing is clean: but both their mind and their conscience are defiled.