And the sons of Jada the brother of Shammai: Jether and Jonathan. And Jether died without children.

He ordered Jether his firstborn son, "Come on! Kill them!" But Jether was too afraid to draw his sword, because he was still young.

The sons of Jether: Jephunneh, Pispah, and Ara.

And the sons of Ezra: Jether, and Mered, and Epher, and Jalon; and she conceived and bore Miriam, and Shammai, and Jishbah the father of Eshtemoa.

And Abigail bore Amasa, and the father of Amasa [was] Jether the Ishmaelite.

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

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

Absalom had made Amasa general in command of the army in place of Joab. (Now Amasa was the son of an Israelite man named Jether, who had married Abigail the daughter of Nahash and sister of Zeruiah, Joab's mother.)