28. Thy name shall be called no more Jacob. Jacob, as we have seen, received his name from his mother’s womb, because he had seized the heel of his brother’s foot, and had attempted to hold him back. God now gives him a new and more honorable name; not that he may entirely abolish the other, which was a token of memorable grace, but that he may testify a still higher progress of his grace. Therefore, of the two names the second is preferred to the former, as being more honorable. The name is derived from שרה ( sarah) or שור ( sur,) which signifies to rule, as if he were called a Prince of God: for I have said, a little before, that God had transferred the praise of his own strength to Jacob, for the purpose of triumphing in his person. The explanation of the name which is immediately annexed, is thus given literally by Moses, “Because thou hast ruled with, or, towards God and towards man, and shalt prevail.” Yet the sense seems to be faithfully rendered by Jerome: (109) but if Jacob acted thus heroically with God, much more should he prove superior to men; for certainly it was the purpose of God to send forth his servant to various combats, inspired with the confidence resulting from so great a victory, lest he should afterwards become vacillating. For he does not merely impose a name, as risen are accustomed to do, but with the name he gives the thing itself which the name implies, that the event may correspond with it.
(109) Quoniam si contra Deum fortis fuisti, quanto magis contra homines praevalebis ? If thou hast been so strong against God, how much more shalt thou prevail against men? — Vulgate.