Genesis 17:13

13.For an everlasting covenant The meaning of this expression may be twofold: either that God promises that his grace, of which circumcision was a sign and pledge, should be eternal; or that he intended the sign itself to be perpetually observed. Indeed, I have no doubt that this perpetuity ought to be referred to the visible sign. But they who hence infer, that the use of it ought to flourish among the Jews even of the present time, are (in my opinion) deceived. For they swerve from that axiom which we ought to regard as fixed; that since Christ is the end of the law, the perpetuity which is ascribed to the ceremonies of the law, was terminated as soon as Christ appeared. The temple was the perpetual habitation of God, according to that declaration,

“This is my rest forever, here will I dwell,” (Psalms 132:14.)

The Sabbath indicated not a temporal but a perpetual sanctification of the people. Nevertheless, it is not to be denied, that Christ brought them both to an end. In the same way must we also think of circumcision. If the Jews object, that in this manner, the law was violated by Christ; the answer is easy; that the external use of the law was so abrogated, as to establish its truth. For, at length, by the coming of Christ, circumcision was substantially confirmed, so that it should endure forever, and that the covenant which God had before made, should be ratified. Moreover, lest the changing of the visible sign should perplex any one, let that renovation of the world, of which I have spoken, be kept in mind; which renovation — notwithstanding some interposed variety — has perpetuated those things which would otherwise have been fading. Therefore, although the use of circumcision has ceased; yet it does not cerise to be an everlasting, or perpetual covenant, if only Christ be regarded as the Mediator; who, though the sign be changed, has confirmed the truth. And that, by the coming of Christ, external circumcision ceased, is plain from the words of Paul; who not only teaches that we are circumcised by the death of Christy spiritually, and not through the carnal sign: but who expressly substitutes baptism for circumcision; (Colossians 2:11;) and truly baptism could not succeed circumcision, without taking it away. Therefore in the next chapter he denies that there is any difference between circumcision and uncircumcision; because, at that time, the thing was indifferent, and of no importance. Whence we refute the error of those, who think that circumcision is still in force among the Jews, as if it were a peculiar symbol of the nation, which never ought to be abrogated. I acknowledge, indeed, that it was permitted to them for a time, until the liberty obtained by Christ should be better known; but though permitted, it by no means retained its original force. For it would be absurd to be initiated into the Church by two different signs; of which the one should testify and affirm that Christ was come, and the other should shadow him forth as absent.