Then David sent messengers to Ish-bosheth, Saul’s son, saying, “Give me my wife Michal, for whom I paid the bridal price of a hundred foreskins of the Philistines.”
Here, I. Abner breaks with Ish-bosheth, and deserts his interest, upon a little provocation which Ish-bosheth unadvisedly gave him. God can serve his own purposes by the sins and follies of men. 1. Ish-bosheth accused Abner of no less a crime than debauching one of his father's concubines, Sa2 3:7.
Commenting on 2 Samuel 3:7-21
And David sent messengers to Ishbosheth, Saul's son,.... When Abner's messengers returned to him, and acquainted him with the condition of David's entering into a league with him, it is highly probable that Abner sent them or others to David, to let him know that he could not do this of himself; that it was advisable for him to write to Ishbosheth, whose sister she...
Deliver me my wife - It is supposed that he meant to screen Abner; and to prevent that violence which he might have used in carrying off Michal.