Genesis 17:22

When God had finished His address and ascended again, Abraham immediately fulfilled the covenant duty enjoined upon him, by circumcision himself on that very day, along with all the male members of his house. Because Ishmael was 13 years old when he was circumcised, the Arabs even now defer circumcision to a much later period than the Jews, generally till between the ages of 5 and 13, and frequently even till the 13th year.

This chapter contains articles of agreement covenanted and concluded upon between the great Jehovah, the Father of mercies, on the one part, and pious Abram, the father of the faithful, on the other part. Abram is therefore called "the friend of God," not only because he was the man of his counsel, but because he was the man of his covenant; both these secrets were with him. Mention was made of this covenant (Gen 15:18), but here it is particularly drawn up, and put into the form of a covenant, that Abram might have strong consolation. Here are, I. The circumstances of the making of this covenant, the time and manner (Gen 17:1), and the posture Abram was in (Gen 17:3). II. The covenant itself. In the general scope of it (Gen 17:1). And, afterwards, in the particular instances. 1. That he should be the father of many nations (Gen 17:4, Gen 17:6), and, in token of this, his name was changed (Gen 17:5). 2. That God would be a God to him and his seed, and would give them the land of Canaan (Gen 17:7, Gen 17:8). And the seal of this part of the covenant was circumcision (Gen 17:9-14). 3. That he should have a son by Sarai, and, in token thereof, her name was changed (Gen 17:15, Gen 17:16). This promise Abram received (Gen 17:17). And his request for Ishmael (Gen 17:18) was answered, abundantly to his satisfaction (Gen 17:19-22). III. The circumcision of Abram and his family, according to God's appointment (Gen 17:23, etc.).