Gregory the Great, on 1Cor 15:46

“Yet that was not first which is spiritual, but that which is natural; afterwards that which is spiritual.”

“What then is designated by John except the Synagogue, what by Peter except the Church? Nor should it seem strange that the Synagogue is said to be signified by the younger and the Church by the elder, because even if the Synagogue is prior to the Church of the Gentiles in the worship of God, nevertheless the multitude of the Gentiles is prior to the Synagogue in the practice of the world, as Paul attests when he says: "Because what is spiritual is not first, but what is natural." Therefore by the elder Peter is signified the Church of the Gentiles, but by the younger John the Synagogue of the Jews.”

Imported from an open dataset — not yet checked against the printed edition.