Melachim Alef 2:32

32 And Hashem shall return his dahm upon his own rosh, who fell upon two anashim more tzadikim and tovim than he, and killed them with the cherev, Dovid Avi not knowing thereof: Avner Ben Ner, Sar Tzava Yisroel, and Amasa Ben Yeter, Sar Tzava Yehudah.

Melachim Alef 2:32 Meaning and Commentary

1 Kings 2:32

And the Lord shall return his blood upon his own head
By way of retaliation, blood for blood:

who fell upon two men more righteous and better than he;
later named; for though they had been in open rebellion against David, yet had submitted, and were reconciled and received into favour; and even their open crimes were not so bad, Solomon judged, as his secret treacherous murders of innocent persons in cool blood; they were men of more honour and integrity than he was, not so cruel and barbarous, though guilty in other respects:

and slew them with the sword, my father not knowing [thereof];
this is observed to remove all suspicion, and which doubtless had been entertained by some, that David had an hand in their death; and that Joab did what he did with his knowledge and consent, and by his advice and order; they having been both concerned in rebellion against him, the one under Ishbosheth, and the other under Absalom:

[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:
the reason of the two hosts, of which they were captains or generals, being thus distinguished, is, because the tribes of Israel were on the side of Ishbosheth, whose general Abner was, in opposition to Judah, who made David their king; and, on the other hand, they were the men of Judah that were first and chiefly in the rebellion of Absalom, whose general Amasa was; of the murder of these two men by Joab, see ( 2 Samuel 3:27 ) ( 20:10 ) .

Melachim Alef 2:32 In-Context

30 And Benayah came to the Ohel Hashem, and said unto him, Thus saith HaMelech, Come forth. And he said, Nay; but I will die here. And Benayah brought HaMelech word again, saying, Thus said Yoav, and thus he answered me.

31 And HaMelech said unto him, Do as he hath said, and fall upon him, and bury him; that thou mayest take away from me the demei chinnam (innocent blood), the shefach dahm of Yoav, even from against the Bais Avi.

32 And Hashem shall return his dahm upon his own rosh, who fell upon two anashim more tzadikim and tovim than he, and killed them with the cherev, Dovid Avi not knowing thereof: Avner Ben Ner, Sar Tzava Yisroel, and Amasa Ben Yeter, Sar Tzava Yehudah.

33 Let their dahm therefore turn back upon the rosh Yoav, and upon the rosh of his zera l’olam; but upon Dovid, and upon his Zera, and upon his Bais, and upon his Kisse, let there be shalom ad olam from Hashem.

34 So Benayah Ben Yehoyada went up, and fell upon him, and executed him; and he was buried in his bais (house, i.e., in court or garden of his house) in the midbar.