1 Chronicles 2:17

And Abigail bore Amasa: and the father of Amasa was Jether the Ishmaelite.

2 Samuel 17:25

And Absalom made Amasa captain of the host instead of Joab: which Amasa was a man's son, whose name was Ithra an Israelite, that went in to Abigail the daughter of Nahash, sister to Zeruiah Joab's mother.

2 Samuel 19:13

And say you to Amasa, Are you not of my bone, and of my flesh? God do so to me, and more also, if you be not captain of the army before me continually in the place of Joab.

2 Samuel 20:4-12

Then said the king to Amasa, Assemble me the men of Judah within three days, and you be here present.

1 Kings 2:5

Moreover you know also what Joab the son of Zeruiah did to me, and what he did to the two captains of the armies of Israel, unto Abner the son of Ner, and unto Amasa the son of Jether, whom he slew, and shed the blood of war in peace, and put the blood of war upon his belt that was about his loins, and in his shoes that were on his feet.

1 Kings 2:32

And the LORD shall return his blood upon his own head, who struck down two men more righteous and better than he, and slew them with the sword, my father David not knowing of it, Abner the son of Ner, captain of the army of Israel, and Amasa the son of Jether, captain of the army of Judah.

Treasury of Scripture Knowledge

Summary

And Abigail bare Amasa: and the father of Amasa was Jether the Ishmeelite.

Bible References

Amasa

2 Samuel 17:25
And Absalom made Amasa captain of the host instead of Joab: which Amasa was a man's son, whose name was Ithra an Israelite, that went in to Abigail the daughter of Nahash, sister to Zeruiah Joab's mother.
2 Samuel 19:13
And say you to Amasa, Are you not of my bone, and of my flesh? God do so to me, and more also, if you be not captain of the army before me continually in the place of Joab.
2 Samuel 20:4
Then said the king to Amasa, Assemble me the men of Judah within three days, and you be here present.
1 Kings 2:5
Moreover you know also what Joab the son of Zeruiah did to me, and what he did to the two captains of the armies of Israel, unto Abner the son of Ner, and unto Amasa the son of Jether, whom he slew, and shed the blood of war in peace, and put the blood of war upon his belt that was about his loins, and in his shoes that were on his feet.