In his directions with respect to certain important persons, David, anxious for the security of his young successor's kingdom, allows old animosities to revive, and is willing to avenge himself indirectly and by deputy, though he had been withheld by certain scruples from taking vengeance in his own person. We must not expect Gospel morality from the saints of the Old Testament. They were only the best men of their several ages and nations. The maxim of "them of old time," whether Jews or Gentiles, was "Love your friends and hate your enemies" (see Matthew 5:43); and David perhaps was not in this respect in advance of his age. Joab's chief offence against David, besides his two murders, was no doubt his killing Absalom 2 Samuel 18:14. Another serious crime was his support of the treasonable attempt of Adonijah 1 Kings 1:7. But besides these flagrant misdemeanours, he seems to have offended David by a number of little acts. He was a constant thorn in his side. He treated him with scant respect, taking important steps without his orders 2 Samuel 3:26, remonstrating with him roughly and rudely 2 Samuel 2:24-25, almost betraying his secrets 2 Samuel 11:19-21, and, where he disliked the orders given him, disobeying them 1 Chronicles 21:6. David allowed his ascendancy, but he chafed against it, finding this "son of Zeruiah," in particular "too hard" for him (margin reference).

Put the blood of war upon his girdle ... - Meaning "The blood of Amasa spirited all over the girdle to which the sword of Joab was attached; and the sandals on his feet were reddened with the stains left by the falling corpse."

Thou knowest - what Joab - did to me - He did every thing bad and dishonorable in itself, in the murder of Abner and Amasa, and indeed in the death of the profligate Absalom.

Shed the blood of war - upon his girdle - and in his shoes - He stabbed them while he pretended to embrace them, so that their blood gushed out on his girdle, and fell into his shoes! This was a most abominable aggravation of his crimes.

Moreover thou knowest also what Joab the son of Zeruiah did unto me,.... In slaying Absalom, contrary to his orders, and in behaving insolently towards him on account of his mourning for him, and at other times; but as these things might not be personally known to Solomon, only by hearsay, this may respect his disloyalty towards him, in joining with Adonijah, who set himself up for king in his lifetime, and without his knowledge and consent; or it may respect the instances next mentioned, in which he did injury to the interest, honour, and character of David:

and, or "even",

what he did to the two captains of the host of Israel, unto Abner the son of Ner, and unto Amasa the son of Jether, whom he slew; to Abner who was under Ishbosheth, and Amasa under David, who had not only the promise of the post, but was actually in it when Joab slew him; and indeed out of envy to him for it:

and shed the blood of war in peace; when they were at peace with him, as if they had been in open war; and even under a pretence of friendship to them, asking of their peace and welfare, as if he meant nothing less than to behave peaceably towards them; hence the Targum is,

"whom he slew in craftiness:''

and put the blood of war upon the girdle that was about his loins,

and in his shoes that were in his feet; which particularly respects the affair of Amasa, whose blood he shed with his sword, that dropped out of its scabbard, girded upon his loins, and into which he put it again, all over bloody, and wore it girded upon his loins; and which he also stooped for when it fell, as if he was going to unloose or buckle his shoes, and into which the blood ran down when he stabbed him; and after this barbarous action marched on without any shame or remorse, with his bloody sword on his loins, and the blood of the murdered in his shoes.

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 {d} shed the blood of war in peace, and {e} put the blood of war upon his girdle that was about his loins, and in his shoes that were on his feet.

(d) He shed his blood in time of peace, as if there had been war.

(e) He put the bloody sword into his sheath.

2:5 To me - That is, against me; in what he did against Abner and Amasa: whose death was a great injury to David, as it was a breach of his laws and peace; a contempt of his person and government; a pernicious example to his subjects, and a great scandal to him, as if Joab had been only David's instrument, to affect what he secretly designed. And shed - He slew them as if they had been in the state of war, when there was not only a cessation of arms, but also a treaty of peace. Put the blood - This is added to note his impenitency, that although by his perfidious manner of killing them when he pretended to embrace them, he stained his own garments with their blood, yet he was not ashamed of it, but gloried in it, and marched boldly along with the army, with the same girdle and shoes which were sprinkled with their blood.

shed: Heb. put

5, 6. thou knowest also what Joab . did-The insolent and imperious conduct of that general had not only been deeply offensive to the feelings (2Sa 18:5-15; 19:5-7), but calculated to bring reproach on the character, to injure the prospects, and endanger the throne of David. Passing over the injuries committed directly against himself, David dwelt with strong feelings on the base assassination of Abner and Amasa.

shed the blood of war in peace, &c.-The obvious meaning is, that in peace he acted towards them as if they had been in a state of warfare; but perhaps these graphic expressions might be designed to impress Solomon's mind more strongly with a sense of the malice, treachery, and cruelty by which those murders were characterized.

2:5-11 These dying counsels concerning Joab and Shimei, did not come from personal anger, but for the security of Solomon's throne, which was the murders he had committed, but would readily repeat them to carry any purpose; though long reprieved, he shall be reckoned with at last. Time does not wear out the guilt of any sin, particularly of murder. Concerning Shimei, Hold him not guiltless; do not think him any true friend to thee, or thy government, or fit to be trusted; he has no less malice now than he had then. David's dying sentiments are recorded, as delivered under the influence of the Holy Ghost,