Romans 4:13

Of the world, &c. By the world, some understand the land of Chanaan, which is sometimes meant by the whole earth, particularly in the times of David and Solomon, when they ruled over the neighbouring nations. But others think that the apostle alludes to the passage of Genesis, where the Almighty promises that in his (Abraham's) seed, all the nations of the earth should be blessed; which promise extends much beyond the narrow limits of Chanaan. In fine, it may be understood in a spiritual sense, of his dignity of father of all the faithful; which makes him, in a manner, master of the whole world, since his spiritual children, spread through the whole world, have the universe for their inheritance. (Calmet) --- Postula a me, et dabo tibi Gentes hæreditatem tuam et possessionem tuam terminos terræ. (Psalm ii. 8.) (Haydock) --- It was by Christ that Abraham was to be heir of the world, in as much as the spiritual kingdom of Christ should be spread over all the world. And this of one who was of the seed of David, being heir of the world, was not by the law, or by virtue of the law, which was not given to Moses till 400 years after. (Witham)