'Sister' in the Bible

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.

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.

In spite of all this, Israel's sister, unfaithful Judah, has not turned back to me with any sincerity; she has only pretended to do so," says the Lord.

So the Lord has this to say about Josiah's son, King Jehoiakim of Judah: People will not mourn for him, saying, "This makes me sad, my brother! This makes me sad, my sister!" They will not mourn for him, saying, "Poor, poor lord! Poor, poor majesty!"