leviticus 19
You are to keep My statutes. You shall not crossbreed two different kinds of livestock; you shall not sow your fields with two kinds of seed; and you shall not wear clothing made of two kinds of material.

If a man lies carnally with a slave girl promised to another man but who has not been redeemed or given her freedom, there must be due punishment. But they are not to be put to death, because she had not been freed. 21The man, however, must bring a ram to the entrance to the Tent of Meeting as his guilt offering to the LORD. 
The priest shall make atonement on his behalf before the LORD with the ram of the guilt offering for the sin he has committed, and he will be forgiven the sin he has committed.