1 tn Grk “Why? Because not by faith but as though by works.” The verb (“they pursued [it]”) is to be supplied from the preceding verse for the sake of English style; yet a certain literary power is seen in Paul’s laconic style.
2 tc Most mss, especially the later ones (א2 D Ψ 33 Ï sy), read νόμου (nomou, “of the law”) here, echoing Paul’s usage in Rom 3:20, 28 and elsewhere. The qualifying phrase is lacking in א* A B F G 6 629 630 1739 1881 pc lat co. The longer reading thus is weaker externally and internally, being motivated apparently by a need to clarify.
3 tn Grk “the stone of stumbling.”
4 tc A large number of mss, some of them quite important (Ì46vid א2 B D F G Ψ 0209 33 1881 Ï lat sa), read “or to be offended or to be made weak” after “to stumble.” The shorter reading “to stumble” is found only in Alexandrian mss (א* A C 048 81 945 1506 1739 pc bo). Although external evidence favors inclusion, internal evidence points to a scribal expansion, perhaps reminiscent of 1 Cor 8:11-13. The shorter reading is therefore preferred.