The historical fact of these practices is recorded in the Old Testament, as is the fact that stoning to death adulterous women was condoned by the leaders of Jewish society of that time. However, I am not prepared therefore to conclude that God approved, although admittedly the prophets claiming to be his messengers did not condemn these customs.
1 Kings 11
1. King Solomon, however, loved many foreign women besides Pharaoh's daughter--Moabites, Ammonites, Edomites, Sidonians and Hittites.
2. They were from nations about which the LORD had told the Israelites, "You must not intermarry with them, because they will surely turn your hearts after their gods." Nevertheless, Solomon held fast to them in love.
3. He had seven hundred wives of royal birth and three hundred concubines, and his wives led him astray.