WORKS OF ST. CHRYSOSTOM. [CHAPTER VI. preserve it when obtained came not from Cir cumcision but from Grace. On this account he concluded his exhoration with a prayer, remind- ing them of grace and the Spirit, and at the same time addressing them as brethren, and supplicating God that they might continue to enjoy these blessings, thus providing for them a twofold security. For both prayer and teach ing, tended to the same thing and together be came to them as a double wall. For teaching, reminding them of what benefits they enjoyed, the rather kept them in the doctrine of the Church ; and prayer, invoking grace, and ex horting to an enduring constancy, permitted not the Spirit to depart from them. And He abid ing in them, all the error of such doctrines as they held was shaken off like dust. 1 1 [Dr. Schaff strikingly says : " The last sentence of this polemic Epistle is a benediction and the last word is a word of affection, brethren. (The word <i5eA(/>oi stands last in the true text, as the Rev. Version has it.) It takes the sting out of the severity. Thus concludes thio Epistle so full of polemic fire and zeal, yet more full of grace free sovereign grace, justifying sanctifying grace, and full of forgiving love even to ungrateful pupils ; an Epistle for the time and an Epistle for all times." Popular Commentary, in loco.G. A.]