'Play the Harlot' in the Bible

then they shall bring out the damsel to the door of her father's house, and the men of her city shall stone her to death with stones, because she hath wrought folly in Israel, to play the harlot in her father's house: so shalt thou put away the evil from the midst of thee.

And Jehovah said unto Moses, Behold, thou shalt sleep with thy fathers; and this people will rise up, and play the harlot after the strange gods of the land, whither they go to be among them, and will forsake me, and break my covenant which I have made with them.