(3.) That he shall himself continue to take care of the affairs of this numerous family: He shall prolong his days. Many, when they see their seed, their seed's seed, wish to depart in peace; but Christ will not commit the care of his family to any other, no, he shall himself live long, and of the increase of his government and peace there shall be no end, for he ever lives. Some refer it to believers: He shall see a seed that shall prolong its days, agreeing with Ps. lxxxix. 29, 36, His seed shall endure for ever. While the world stands Christ will have a church in it, which he himself will be the life of.