Before going into my article, let me give you an overview of what incest and bestiality is.
Homosexuality is somewhat a popular term, so no need to tell you what it means.
Incest is a sexual relationship between two direct blood relatives. While bestiality is a sexual relations between a human being and an animal.
As a Christian, homosexuality, incest and bestiality are wrong and is condemned in the Judaic and Christian bible.
Verses about homosexuality can be found in Leviticus 18:22 and Leviticus 20:13, plus a few more in the new testament.
Though, incest was allowed by God in the early days, God later was against it. Verses: Leviticus 18:6-18.
Bestiality is the worst of all in my opinion, and the verses are Leviticus 18:23. Deuteronomy 27:21 – “Cursed is the man who has sexual relations with any animal.”
The bible is not clear why God did not allow these type of relationships. But, I think that people who are into these are violating the Genesis 9:7 commandment – “As for you, be fruitful and multiply; Populate the earth abundantly and multiply in it.”