Berean Study Bible
The LORD will bring his bloodshed back upon his own head, for without the knowledge of my father David he struck down two men more righteous and better than he when he put to the sword Abner son of Ner, commander of Israel’s army, and Amasa son of Jether, commander of Judah’s army.

King James Bible
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 thereof, 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.

American Standard Version
And Jehovah will return his blood upon his own head, because he fell upon two men more righteous and better than he, and slew them with the sword, and my father David knew it not, 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.

Darby Bible Translation
And Jehovah shall requite the blood which he shed upon his own head, because he fell upon two men more righteous and better than he, and slew them with the sword, without my father David's knowledge: Abner the son of Ner, captain of the host of Israel, and Amasa the son of Jether, captain of the host of Judah.

Douay-Rheims Bible
And the Lord shall return his blood upon his own head, because he murdered two men, just and better than himself: and slew them with the sword, my father David not knowing it, Abner the son of Ner, general of the army of Israel, and Amasa the son of Jether, general of the army of Juda.

English Revised Version
And the LORD shall return his blood upon his own head, because he fell upon two men more righteous and better than he, and slew them with the sword, and my father David knew it not, 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.

Young's Literal Translation
and Jehovah hath turned back his blood on his own head, who hath fallen on two men more righteous and better than he, and slayeth them with the sword, -- and my father David knew not -- Abner son of Ner, head of the host of Israel, and Amasa son of Jether, head of the host of Judah;