“Nevertheless for David's sake did the LORD his God give him a lamp in Jerusalem, to set up his son after him, and to establish Jerusalem:”
King James Version (KJV)
15:4 A lamp - A son and successor to perpetuate his name and memory,which otherwise had gone into obscurity. Jerusalem - That he mightmaintain that city, and temple, and worship, as a witness for God, in theworld, against the Israelites and heathen world.