Adam Clarke's Bible Commentary Verse 4. That the Lord may continue his word] The prosperity which God has promised to grant to my family will depend on their faithfulness to the good they receive; if they live to God, they shall sit for ever on the throne of Israel. But alas! they did not; and God's justice cut off the entail made by his mercy.
Matthew Henry Commentary
Verses 1-4 - David's charge to Solomon is, to keep the charge of the Lord. The authority of a dying father is much, but nothing to that of a livin God. God promised David that the Messiah should come from his descendants, and that promise was absolute; but the promise, that ther should not fail of them a man on the throne of Israel, was conditional if he walks before God in sincerity, with zeal and resolution: in orde hereunto, he must take heed to his way. (1Ki 2:5-11)
Original Hebrew למען4616 יקים6965 יהוה3068 את853 דברו1697 אשׁר834 דבר1696 עלי5921 לאמר559 אם518 ישׁמרו8104 בניך1121 את853 דרכם1870 ללכת1980 לפני6440 באמת571 בכל3605 לבבם3824 ובכל3605 נפשׁם5315 לאמר559 לא3808 יכרת3772 לך אישׁ376 מעל5921 כסא3678 ישׂראל׃3478