Brief van Barnabas 13

But let us see if this people is the heir, or the former, and if the covenant belongs to us or to them. Hear now what the Scripture says concerning the people. Isaac prayed for Rebecca his wife, because she was barren; and she conceived. Genesis 25:21 Furthermore also, Rebecca went forth to inquire of the Lord; and the Lord said to her, Two nations are in your womb, and two peoples in your belly; and the one people shall surpass the other, and the elder shall serve the younger. Genesis 25:23 You ought to understand who was Isaac, who Rebecca, and concerning what persons He declared that this people should be greater than that. And in another prophecy Jacob speaks more clearly to his son Joseph, saying, Behold, the Lord has not deprived me of your presence; bring your sons to me, that I may bless them. And he brought Manasseh and Ephraim, desiring that Manasseh should be blessed, because he was the elder. With this view Joseph led him to the right hand of his father Jacob. But Jacob saw in spirit the type of the people to arise afterwards. And what says [the Scripture]? And Jacob changed the direction of his hands, and laid his right hand upon the head of Ephraim, the second and younger, and blessed him. And Joseph said to Jacob, Transfer your right hand to the head of Manasseh, for he is my first-born son. Genesis 48:18 And Jacob said, I know it, my son, I know it; but the elder shall serve the younger: yet he also shall be blessed. Genesis 48:19 You see on whom he laid [his hands], that this people should be first, and heir of the covenant. If then, still further, the same thing was intimated through Abraham, we reach the perfection of our knowledge. What, then, says He to Abraham? Because you have believed, it is imputed to you for righteousness: behold, I have made you the father of those nations who believe in the Lord while in [a state of] uncircumcision.