They brought the head of Ish-bosheth to David at Hebron and said to the king, “Here is the head of Ish-bosheth son of Saul, your enemy who sought your life. Today the LORD has granted vengeance to my lord the king against Saul and his offspring.”
Here is, I. The weakness of Saul's house. Still it grew weaker and weaker. 1. As for Ishbosheth, who was in possession of the throne, his hands were feeble, Sa2 4:1. All the strength they ever had was from Abner's support, and now that he was dead he had no spirit left in him.
Commenting on 2 Samuel 4:1-8
And David answered Rechab and Baanah his brother, the sons of Rimmon the Beerothite,.... In a manner they did not expect: and said unto them, as the Lord liveth, who hath redeemed my soul out of all adversity; spiritual and temporal, especially the latter is meant, and particularly what he had been brought into by the persecution of Saul, while living, and by those that...
They brought the head of Ish-bosheth unto David . . . and said, Behold the head of Ish-bosheth--Such bloody trophies of rebels and conspirators have always been acceptable to princes in the East, and the carriers have been liberally rewarded. Ish-bosheth being a usurper, the two assassins thought they were doing a meritorious service to David by removing the only existing obstacle to the union of the two kingdoms.