Jamieson, Fausset & Brown

There is in this sonship by faith in Christ, no class privileged above another, as the Jews under the law had been above the Gentiles (Rom 10:12; Co1 12:13; Col 3:11). bond nor free--Christ alike belongs to both by faith; whence he puts "bond" before "free." Compare Note, see on Co1 7:21-22; Eph 6:8. neither male nor female--rather, as Greek, "there is not male and female." There is no distinction into male and female. Difference of sex makes no difference in Christian privileges. But under the law the male sex had great privileges. Males alone had in their body circumcision, the sign of the covenant (contrast baptism applied to male and female alike); they alone were capable of being kings and priests, whereas all of either sex are now "kings and priests unto God" (Rev 1:6); they had prior right to inheritances. In the resurrection the relation of the sexes shall cease (Luk 20:35). one--Greek, "one man"; masculine, not neuter, namely "one new man" in Christ (Eph 2:15).