Matthew Henry on 2 Samuel 3:1-6
Here is, I. The struggle that David had with the house of Saul before his settlement in the throne was completed, Sa2 3:1. 1. Both sides contested. Saul's house, though beheaded and diminished, would not fall tamely. It is not strange between them, but one would wonder it should be a long war, when David's house had right on its side, and therefore God on its side; but, though truth and equity will triumph at last, God made for wise and holy ends prolonged the conflict. The length of this war tried the faith and patience of David, and made his establishment at last the more welcome to him. 2. David's side got ground. The house of Saul waxed weaker and weaker, lost places, lost men, sunk in i…
Read the whole note in the consoleJamieson-Fausset-Brown on 2 Samuel 3:3
Chileab--("his father's picture")--called also Daniel (Ch1 3:1).
Maacah the daughter of Talmai king of Geshur--a region in Syria, north of Israel. This marriage seems to have been a political match, made by David, with a view to strengthen himself against Ish-bosheth's party, by the aid of a powerful friend and ally in the north. Piety was made to yield to policy, and the bitter fruits of this alliance with a heathen prince he reaped in the life of the turbulent Absalom.
Adam Clarke on 2 Samuel 3:1
There was long war - Frequent battles and skirmishes took place between the followers of David and the followers of Ish-bosheth, after the two years mentioned above, to the end of the fifth year, in which Ish-bosheth was slain by Rechab and Baanah.
John Gill on 2 Samuel 3:4
And the fourth, Adonijah the son of Haggith,.... The same that usurped the throne before his father's death, to anticipate Solomon, and died by his order, 1 Kings 1:5,
and the fifth, Shephatiah the son of Abital; of whom we read nowhere else.
Keil & Delitzsch on 2 Samuel 3:2-5