If your very own brother, or your son or daughter, or the wife you love, or your closest friend secretly entices you, saying, “Let us go and worship other gods” (gods that neither you nor your ancestors have known, gods of the peoples around you, whether near or far, from one end of the land to the other), do not yield to them or listen to them. Show them no pity. Do not spare them or shield them. You must certainly put them to death. Your hand must be the first in putting them to death, and then the hands of all the people. Stone them to death, because they tried to turn you away from the LORD your God, who brought you out of Egypt, out of the land of slavery.
— Deuteronomy 13 6-13
The Bible Fails on Moral Values
It is remarkably easy to realize the evils of slavery, however; the Bible completely whiffs on this topic. In fact, the creator of the universe expects people to own slaves. Hell, you can even sell your own daughter into slavery if you so choose (Leviticus 24-36). The only guidance the Bible offers is that we don’t injure slaves bad enough to affect their eyes or teeth. And what god sanctioned in the Old Testament cannot be a sin.
Let all slaves under the yoke of slavery give honor to their masters.
—Timothy 1 1:6
Jesus does not go against his own word in the New Testament and in places; he enforces the entirety of the Old Testament law. This has led some of the greatest minds that have interpreted the bible, St Augustine and St Thomas Aquino, to agree that heretics should be tortured or killed outright.
Not to say that there aren’t words of wisdom and truth in the bible. In some parts, Jesus did say profound things on love, charity, and forgiveness, and the golden rule is a wonderful moral precept. But so did countless others: Buddha, Zora Austrians, etc. and these teachings are without the obscene violence that begets the bible. If you have to cherry pick parts to debate other parts of a book, it is not a good guide to morality.