'Play the Harlot' in the Bible

And I said unto her, you shall abide with me many days; you shall not play the harlot, and you shall not be for another man: so will I also be to you.

Though you, Israel, play the harlot, yet let not Judah offend; and come not unto Gilgal, neither go up to Bethaven, nor swear, As the LORD lives.