Circumcision the Sign of the Covenant
171 And Abram was ninety-nine years old, when Jehovah appeared to Abram, and said to him, I [am] the Almighty God: walk before my face, and be perfect. 2 And I will set my covenant between me and thee, and will very greatly multiply thee.
Matthew Henry's Commentary on Genesis 17:1-2
Commentary on Genesis 17:1-6
(Read Genesis 17:1-6)
The covenant was to be accomplished in due time. The promised Seed was Christ, and Christians in him. And all who are of faith are blessed with faithful Abram, being partakers of the same covenant blessings. In token of this covenant his name was changed from Abram, "a high father," to Abraham, "the father of a multitude." All that the Christian world enjoys, it is indebted for to Abraham and his Seed.