Verse 1
it came to pass. Compare 2 Samuel 11:1; 2 Samuel 12:26-31.
children = sons.
David tarried at Jerusalem. No reference is made here to the result of this tarrying, which is recorded in 2 Samuel 11:1, 2 Samuel 12:25.
Verse 2
David took. No discrepancy here, for Joab had summoned David for the purpose (2 Samuel 12:27).
Verse 3
cut. Hebrew. sur. Occurs only here; the meaning "cut" is arbitrary. It must be explained by 2 Samuel 12:31, where it is sum, and is rendered "put" = "appointed them [to work] with". See notes there. Sur is probably from yashar = to regulate, or rule.
Verse 4
children = those born.
the giant. Hebrew. raphah, a descendant of one Rapha, who came of the Nephilim. See 2 Samuel 21:18-22, and App-23.