Jubilees 16:17
And (that) all the seed of his sons should be Gentiles, and be reckoned with the Gentiles; but from the sons of Isaac one should become a holy seed, and should not be reckoned among the Gentiles.
And (that) all the seed of his sons should be Gentiles, and be reckoned with the Gentiles; but from the sons of Isaac one should become a holy seed, and should not be reckoned among the Gentiles.