Circumcision was a sign by which the Jews were reminded that whatever comes of the seed of man—in other words, the whole nature of man—is corrupt, and requires to be cut off; moreover, it was a proof and memorial to confirm them in the promise made to Abraham, of a seed in whom all the nations of the earth should be blessed, and from whom they themselves were to look for a blessing. That saving seed, as we are taught by Paul (Gal. 5:16), was Christ, in whom alone they trusted to recover what they had lost in Adam. Wherefore circumcision was to them what Paul says it was to Abraham—viz. a sign
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