Leviticus 20:25
that ye should put difference between clean beasts and unclean, and between unclean fowls and them that are clean. Make not your souls therefore abominable with beasts and fowls, and with all manner thing that creepeth upon the ground, which I have separated unto you to hold them unclean.
Leviticus 11:1-47
And the LORD spake unto Moses and Aaron, saying,
Deuteronomy 14:3-21
Ye shall eat no manner of abomination.
Acts 10:11-15
and saw heaven opened, and a certain vessel come down unto him, as it had been a great sheet, knit at the four corners, and was let down to the earth,
Acts 10:28
And he said unto them, "Ye do know how that it is an unlawful thing for a man that is a Jew to company or come unto an alien: But God hath showed me that I should not call any man common or unclean:
Ephesians 5:7-11
Be not, therefore, companions with them.