What does 1 Kings 2:5 mean?

Moreover thou knowest also what Joab the son of Zeruiah did unto me, even what he did to the two captains of the hosts 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 girdle that was about his loins, and in his shoes that were on his feet.

Moreover thou knowest also what Joab the son of Zeruiah did to me, and what he did to the two captains of the hosts 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 girdle that was about his loins, and in his shoes that were on his feet.

Moreover thou knowest also what Joab the son of Zeruiah did unto me, even what he did to the two captains of the hosts 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 girdle that was about his loins, and in his shoes that were on his feet.

Now you have knowledge of what Joab, the son of Zeruiah, did to me, and to the two captains of the army of Israel, Abner, the son of Ner, and Amasa, the son of Jether, whom he put to death, taking payment for the blood of war in time of peace, and making the band of my clothing and the shoes on my feet red with the blood of one put to death without cause.

`And also, thou hast known that which he did to me--Joab son of Zeruiah--that which he did to two heads of the hosts of Israel, to Abner son of Ner, and to Amasa son of Jether--that he slayeth them, and maketh the blood of war in peace, and putteth the blood of war in his girdle, that <FI>is<Fi> on his loins, and in his sandals that <FI>are<Fi> on his feet;

Thou knowest also what Joab, the son of Sarvia, hath done to me, what he did to the two captains of the army 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 on his girdle that was about his loins, and in his shoes that were on his feet.

And thou knowest also what Joab the son of Zeruiah did to me, what he did to the two captains of the hosts 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 upon his sandals that were on his feet.