II. It had a further reference to the days of the Messiah and the accession of the Gentiles to his kingdom; for to these the apostle applies v. 10, of which the following verses are a continuation. Rom. xv. 12, There shall be a root of Jesse; and he that shall rise to reign over the Gentiles, in him shall the Gentiles trust. That is a key to this prophecy, which speaks of Christ as the root of Jesse, or a branch out of his roots (v. 1), a root out of a dry ground, ch. liii. 2. He is the root of David (Rev. v. 5), the root and offspring of David Rev. xxii. 16.