One Lord; Christ, viz. as Redeemer, Head, and Husband of the church, to whom, by God’s appointment, she is immediately subject, 1Co_8:6Joh_13:13Act_2:36.
One faith; i.e. one object of the faith of all believers, viz. the doctrine of salvation, which is but one.
One baptism; both as to the outward symbol, and the thing signified by it.