Ellicott's Commentary for English Readers - 2 Samuel 5:4
(4) Thirty years old.—This statement of the age and of the length of the reign of David (which is repeated in 1 Chronicles 29:26-27, at the end of the history of David’s life) shows us approximately the length of time since the combat with Goliath as some ten or twelve years. It also proves that the greater part of Saul’s reign is treated very briefly in 1 Samuel, and further shows that David was seventy years old at his death. read more
John Dummelow's Commentary on the Bible - 2 Samuel 5:1-25
David is anointed King, captures Jerusalem, and smites the Philistines1. There was no longer any member of the house of Saul who could take the lead.2. Feed] lit. ’act as shepherd to’ (cp. 2 Samuel 7:7;). ’Shepherd’ became a technical term for a ruler (Jeremiah 3:15). The figure is developed in Ezekiel 34.4. The capture of Jerusalem marks a most important point in the history of Israel. Hitherto, the national life had had no real centre; the residence of a judge or a prophet or a king would be... read more