Jeremiah 3:7-8
3:7 Yet even after she had done all that, I thought that she might come back to me. But she did not. Her sister, unfaithful Judah, saw what she did.
3:8 She also saw that I gave wayward Israel her divorce papers and sent her away because of her adulterous worship of other gods. Even after her unfaithful sister Judah had seen this, she still was not afraid, and she too went and gave herself like a prostitute to other gods.