Are ye so foolish? having begun in the Spirit, are ye now made perfect by the flesh? Having begun in the Spirit - Having received a spiritual religion, which refined and purified your hearts; and having received the Holy Spirit of God, by which ye were endued with various miraculous influences; and the spirit of adoption, by which he were assured of the remission of sins, and incorporation with the family of God:
Are ye now made perfect by the flesh? - Are ye seeking to complete that spiritual religion, and to perfect these spiritual gifts, by the carnal rite of circumcision? It appears that by the Spirit, here, not only the Holy Spirit, but his gifts, are to be understood; and by the flesh, illud membrum in quo circumcisio peragitur; and, by a metonymy, circumcision itself.