'Sister' in the Bible

Now after this, it came about that Absalom, David's son, had a beautiful sister, whose name was Tamar; and David's son Amnon was in love with her.

And he was so deeply in love that he became ill because of his sister Tamar; for she was a virgin, and so it seemed hard to Amnon to do anything to her.

And he said to him, O son of the king, why are you getting thinner day by day? will you not say what your trouble is? And Amnon said to him, I am in love with Tamar, my brother Absalom's sister.

Then Jonadab said to him, Go to your bed, and let it seem that you are ill: and when your father comes to see you, say to him, Let my sister Tamar come and give me bread, and get the food ready before my eyes, so that I may see it and take it from her hand.

So Amnon went to bed and made himself seem ill: and when the king came to see him, Amnon said to the king, Please let my sister Tamar come and make me one or two cakes before my eyes, so that I may take food from her hand.

And when she took them to give them to him, he put his arms round her and said, Come to bed, my sister.

And her brother Absalom said to her, Has your brother Amnon been with you? but now, let there be an end to your crying, my sister: he is your brother, do not take this thing to heart. So Tamar went on living uncomforted in her brother's house.

But Absalom said nothing to his brother Amnon, good or bad: for he was full of hate for him, because he had taken his sister Tamar by force.

And Jonadab, the son of Shimeah, David's brother, said, Let not my lord have the idea that all the sons of the king have been put to death; for only Amnon is dead: this has been purposed by Absalom from the day when he took his sister Tamar by force.

And Absalom put Amasa at the head of the army in place of Joab. Now Amasa was the son of a man named Ithra the Ishmaelite, who had been the lover of Abigail, the daughter of Jesse, sister of Zeruiah, Joab's mother.