This passage signalises the definite breach of Christianity with Judaism. The elder Apostles lingered in the porch of the Temple; the primitive Church clung to the ancient worship. Paul does not blame them for doing so. In their case this was but the survival of a past order, in principle acknowledged to be obsolete. But the Church of the future, the spiritual seed of Abraham gathered out of all nations, had no part in Legalism. The Apostle bends all his efforts to convince his readers of this, to make them sensible of the impassable gulf lying between them and outworn Mosaism. Again he repeats, "We are not children of a maidservant, but of her that is free" (ver. 31). The Church of Christ can no more hold fellowship with Judaism than could Isaac with the spiteful, mocking Ishmael. Paul leads the Church across the Rubicon. There is no turning back. Ver. 1 of ch. v. is the application of the allegory. It is a triumphant assertion of liberty, a ringing summons to its defence. Its separation from ch. iv. is ill-judged, and runs counter to the ancient divisions of the Epistle. "Christ set us free," Paul declares; "and it was _for freedom_[129]--not that we might fall under a new servitude. _Stand fast_ therefore; do not let yourselves be made bondmen over again." Bondmen the Galatians had been before (ch. iv. 8), bowing down to false and vile gods. Bondmen they will be again, if they are beguiled by the Legalists to accept the yoke of circumcision, if they take "the Jerusalem that now is" for their mother. They have tasted the joys of freedom; they know what it is to be sons of God, heirs of His kingdom and partakers of His Spirit; why do they stoop from their high estate? Why should Christ's freemen put a yoke upon their own neck? Let them only know their happiness and security in Christ, and refuse to be cheated out of the substance of their spiritual blessings by the illusive shadows which the Judaists offer them. Freedom once gained is a prize never to be lost. No care, no vigilance in its preservation can be too great. Such liberty inspires courage and good hope in its defence. "Stand fast therefore. Quit yourselves like men." [129] The reading of this clause is doubtful. The ancient witnesses disagree. Dr. Hort suggests that the Revised reading--the best attested, but scarcely grammatical--may be due to a primitive corruption, ΤΗ for ΕΠ (ἐλευθερίᾳ). This emendation gives an excellent and apposite sense: _for (with a view to) freedom Christ set us free_. The phrase ἐπ' ἐλευθερίᾳ is found in ver. 13, and would gain additional force there, if read as a repetition of what is affirmed here. The confusion of letters involved is a natural one; and once made at an early time in some standard copy, it would account for the extraordinary confusion of reading into which the verse has fallen. If conjectural emendation may be admitted anywhere in the N. T., it is legitimate in this instance.