that the LORD may establish his word that he spoke concerning me, saying, ‘If your sons pay close attention to their way, to walk before me in faithfulness with all their heart and with all their soul, you shall not lack a man on the throne of Israel.’
God's promise to David hangs on a condition: His descendants must walk before Him in truth, with all their heart and soul, with complete sincerity and zeal. If they do, the throne shall never lack a man. Literally, this was conditional; spiritually, it finds its absolute and eternal fulfilment in Christ, whose throne endures forever.
AI summary
there shall not fail thee . . . a man on the throne of Israel--a reference to the promise made to David of the sovereignty being vested perpetually in his lineage (Sa2 7:11-16), which was confirmed to Solomon afterwards (see Kg1 9:5), and repeated with reference to its spiritual meaning long after (Jer 33:17).
That the LORD may continue his word which he spake concerning me, saying, If thy children take heed to their way, to walk before me in truth with all their heart and with all their soul, there shall not fail thee (said he) a man on the throne of Israel. (c) Without hypocrisy.