one Lord, one faith, one baptism,
Here the apostle proceeds to more particular exhortations. Two he enlarges upon in this chapter: - To unity an love, purity and holiness, which Christians should very much study. We do not walk worthy of the vocation wherewith we are called if we be not faithful friends to all Christians, and sworn enemies to all sin.
Commenting on Ephesians 4:2-16
Similarly "faith" and "baptism" (the sacramental seal of faith) are connected (Mar 16:16; Col 2:12). Compare Co1 12:13, "Faith" is not here that which we believe, but the act of believing, the mean by which we apprehend the "one Lord." "Baptism" is specified, being the sacrament whereby we are incorporated into the "one body." Not the Lord's Supper, which is an act of matured communion...
One Lord,.... The Lord Jesus Christ, who, by right of creation, is Lord of all; and by right of marriage, and redemption, is the one and only Lord of his church and people; he has betrothed them to himself, and is their husband, and so their Lord, whom they are to worship and obey; he has redeemed them, he has bought them with the price...