7:16 And thine house and thy kingdom shall be established for ever before thee: thy throne shall be {g} established for ever.
(g) This was begun in Solomon, as a figure, but accomplished in Christ.
7:16 Before thee - Thine eyes in some sort beholding it: for he lived to see his wise son Solomon actually placed in the throne, with reputation and general applause, which was in itself a good presage of the continuance of the kingdom in his family: and being considered, together with the infallible certainty of God's promise to him and his, (of the accomplishment whereof, this was an earnest,) gave him good assurance thereof; especially considering that he had his eyes and thoughts upon the Messiah, Psal 110:1, and c. whose day he saw by faith, as Abraham did, John 8:56, and whom he knew that God would raise out of the fruit of his loins to sit on his throne, and that for ever: and so the eternity of his kingdom is rightly said to be before him.
7:4-17 Blessings are promised to the family and posterity of David. These promises relate to Solomon, David's immediate successor, and the royal line of Judah. But they also relate to Christ, who is often called David and the Son of David. To him God gave all power in heaven and earth, with authority to execute judgment. He was to build the gospel temple, a house for God's name; the spiritual temple of true believers, to be a habitation of God through the Spirit. The establishing of his house, his throne, and his kingdom for ever, can be applied to no other than to Christ and his kingdom: David's house and kingdom long since came to an end. The committing iniquity cannot be applied to the Messiah himself, but to his spiritual seed; true believers have infirmities, for which they must expect to be corrected, though they are not cast off.