And this doth and must determine the difference between the Jews and Christians about the promises of the Old Testament. They are all made unto the church. No individual person hath any interest in them but by virtue of his membership therewith. This church is, and always was, one and the same. With whomsoever it remains, the promises are theirs; and that not by implication or analogy, but directly and properly. They belong as immediately, at this day, either to the Jews or Christians, as they did of old to any. The question is, With whom is this church, founded on the promised Seed in the covenant? This is Zion, Jerusalem, Israel, Jacob, the temple of God. The Jews plead that it is with them, because they are the children of Abraham according to the flesh. Christians tell them that their privilege on this account was of another nature, and ended with the coming of the Messiah; that the church unto whom all the promises belong are only those who are heirs of Abraham’s faith, believing as he did, and thereby interested in his covenant. Not as though the promise made to Abraham were of none effect; for as it was made good unto his carnal seed in the exhibition of the Messiah, so the spiritual privileges of it belonged only unto those of the Jews and Gentiles in whom God had graciously purposed to effect the faith of Abraham. Thus was and is the church, whereunto all the promises belong, still one and the same, namely, Abraham’s children according to the faith: and among those promises this is one, that God will be a God unto them and their seed for ever.
John Owen, An Exposition of the Epistle to the Hebrews, 1.124.