Catena Fidei

Romans 9:7 (WEB)
Neither, because they are Abraham’s offspring, are they all children. But, “your offspring will be accounted as from Isaac.”

Fathers and councils · 6

John Chrysostom, Homilies on Matthew Homily 9
“And Paul again, “For they are not all Israel, which are of Israel; neither they, which are the children of the flesh, are they the children of God.”” — editor's note: Rom. ix. 6–8.
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Augustine of Hippo, On Patience Chapter 25
“…hath so interpreted as to say, “That is, not they which be sons of the flesh, these be the sons of God; but the sons of the promise are counted for the seed;” that we might understand the seed of Abraham in regard of Christ to pertain by reason of Christ to the sons of God, who are Christ’s body and members, that is…” — editor's note: Gen. xxi. 12; and Rom. ix. 7, 8
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Augustine of Hippo, The City of God XVI.32Book XVI
“The apostle, in explaining this, says, “In Isaac shall thy seed be called, that is, they which are the children of the flesh, these are not the children of God: but the children of the promise are counted for the seed.”” — editor's note: Rom. ix. 7, 8.
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Augustine of Hippo, The City of God XVI.34Book XVI
“…flesh, these are not the children of God: but the children of the promise are counted for the seed, of whom it was said, In Isaac shall thy seed be called.”” — editor's note: Rom. ix. 7, 8.
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Augustine of Hippo, Tractates on the Gospel of John Tractate 117
“For “they,” saith the apostle, “who are the children of the flesh, these are not the children of God; but the children of the promise are counted for the seed.”” — editor's note: Rom. ix. 7, 8.
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Tertullian, The Five Books Against Marcion V.13Book V
Chapter XIV.—The Divine Power Shown in Christ’s Incarnation. Meaning of St. Paul’s Phrase. Likeness of Sinful Flesh. No Docetism in It. Resurrection of Our Real Bodies. A Wide Chasm Made in the Epistle by Marcion’s…
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