'Played the Harlot' in the Bible

Yet they did not listen to their judges, for they played the prostitute after other gods and they bowed down to them. They quickly turned aside from the way in which their fathers had walked in obeying the commandments of the Lord; they did not do as their fathers.

Then it came about, as soon as Gideon was dead, that the Israelites again played the prostitute with the Baals, and made Baal-berith their god.