12. I will set up thy seed after thee, &c.—It is customary for the oldest son born after the father's succession to the throne to succeed him in his dignity as king. David had several sons by Bath-sheba born after his removal to Jerusalem (2Sa 5:14-16; compare 1Ch 3:5). But by a special ordinance and promise of God, his successor was to be a son born after this time; and the departure from the established usage of the East in fixing the succession, can be accounted for on no other known ground, except the fulfilment of the divine promise.

     13. He shall build an house for my name, and I will establish the throne of his kingdom for ever—This declaration referred, in its primary application, to Solomon, and to the temporal kingdom of David's family. But in a larger and sublimer sense, it was meant of David's Son of another nature (Heb 1:8). [See on 1Ch 17:14.]

     2Sa 7:18-29. DAVID'S PRAYER AND THANKSGIVING.

     4-17. it came to pass that night, that the word of the Lord came unto Nathan—The command was given to the prophet on the night immediately following; that is, before David could either take any measures or incur any expenses.