Then all Israel gathered together to David at Hebron and said, “Behold, we are your bone and flesh.
David is here brought to the possession. I. Of the throne of Israel, after he had reigned seven years in Hebron, over Judah only. In consideration of his relation to them (Ch1 11:1), his former good services, and especially the divine designation (Ch1 11:2), they anointed him their king: he covenanted to protect them, and they to bear faith and true allegiance to him, Ch1 11:3. Observe, 1.
Commenting on 1 Chronicles 11:1-9
Then all Israel gathered themselves to David unto Hebron, saying, Behold, we [are] thy bone and thy flesh. (a) This was after the death of Ishbosheth Saul's son, when David had reigned over Judah seven years and six months in Hebron, .
Then all Israel gathered themselves to David - See Sa2 5:1-10 (note), for the history contained in the first nine verses of this chapter, and the notes there.