John Wesley on 2 Samuel 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, &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.