Pictured: Judah and Tamar, by Horace Vernet
None of the daughters of Israel shall be a kedeshah, nor shall any of the sons of Israel be a kadesh.
You shall not bring the hire of a prostitute (zonah) or the wages of a dog (keleb) into the house of the Lord your God to pay a vow, for both of these are an abomination to the Lord your God. -Deuteronomy 23:17-18. According to Genesis chpt. 38, "After Judah's own wife died, he went to a prostitute: Tamar, disguised behind a veil. She asked for his staff and seal as security, then made her pregnant. Three months later, Judah learns that Tamar had prostituted herself and gotten pregnant, so he orders her burnt to death..."