SEV Biblia, Chapter 17:25
Y Absalón constituyó a Amasa, sobre el ejército en lugar de Joab, el cual Amasa fue hijo de un varón de Israel llamado Itra, el cual había entrado a Abigail hija de Nahas, hermana de Sarvia, madre de Joab.
Clarke's Bible Commentary - 2 Samuel 17:25
Verse 25. Amasa captain of the host] From the account in this verse, it appears that Joab and Amasa were sisters' children, and both nephews to David.
John Gill's Bible Commentary
Ver. 25. And Absalom made Amasa captain of the host instead of Joab , etc.] Who was along with David: which Amasa [was] a man’s son whose name [was] Ithra, an Israelite ; he is called Jether the Ishmaelite, ( 1 Chronicles 2:17); either because he was an Ishmaelite by birth, and being proselyted to the Jewish religion, was called an Israelite; or rather he was an Israelite by birth, and having sojourned in the land of Ishmael some time, was called an Ishmaelite, as Uriah the Hittite, and others; and when Amasa is called a “man’s son”, it means a great man, as Kimchi observes: that went in to Abigail, the daughter of Nahash, sister to Zeruiah , Joab’s mother : so that Joab and Amasa, the generals of David and Absalom, were own cousins, sisters’ children, and David uncle to them both; for Abigail and Zeruiah were David’s sisters, ( 1 Chronicles 2:16); children of Jesse, whose name is here called Nahash, having two names, or this was his surname; though others think Nahash is the name of a woman, the wife of Jesse, and that these two sisters had two mothers, but one father; it seems by this expression, “went in to”, as if Amasa was not begotten in the conjugal state, but was illegitimate.
Matthew Henry Commentary
Verses 22-29 - Ahithophel hanged himself for vexation that his counsel was no followed. That will break a proud man's heart which will not break humble man's sleep. He thought himself in danger, concluding, that because his counsel was not followed, Absalom's cause would fail; an to prevent a possible public execution, he does justice upon himself Thus the breath is stopped, and the head laid low, from which nothin could be expected but mischief. Absalom chased his father. But observ how God sometimes makes up to his people that comfort from strangers which they are disappointed of in their own families. Our King need not our help; but he assures us, that what we do for the least of his brethren, who are sick, poor, and destitute, shall be accepted an recompensed as if done to himsel __________________________________________________________________
Original Hebrew
ואת 853 עמשׂא 6021 שׂם 7760 אבשׁלם 53 תחת 8478 יואב 3097 על 5921 הצבא 6635 ועמשׂא 6021 בן 1121 אישׁ 376 ושׁמו 8034 יתרא 3501 הישׂראלי 3481 אשׁר 834 בא 935 אל 413 אביגל 26 בת 1323 נחשׁ 5176 אחות 269 צרויה 6870 אם 517 יואב׃ 3097