Genesis 17:23

The covenant had been made with Abram for at least fourteen years, and yet Abram remained without any visible sign of its accomplishment, and was merely pointed in faith to the inviolable character of the promise of God. Jehovah now appeared to Him again, when he was ninety-nine years old, twenty-four years after his migration, and thirteen after the birth of Ishmael, to give effect to the covenant and prepare for its execution. Having come down to Abram in a visible form (Gen 17:22), He said to him, "I am El Shaddai (almighty God): walk before Me and be blameless." At the establishment of the covenant, God had manifested Himself to him as Jehovah (Gen 15:7); here Jehovah describes Himself as El Shaddai, God the Mighty One. שׁדּי: from שׁדד to be strong, with the substantive termination ai, like חגּי the festal, ישׁישׁי the old man, סיני the thorn-grown, etc. This name is not to be regarded as identical with Elohim, that is to say, with God as Creator and Preserver of the world, although in simple narrative Elohim is used for El Shaddai, which is only employed in the more elevated and solemn style of writing. It belonged to the sphere of salvation, forming one element in the manifestation of Jehovah, and describing Jehovah, the covenant God, as possessing the power to realize His promises, even when the order of nature presented no prospect of their fulfilment, and the powers of nature were insufficient to secure it. The name which Jehovah thus gave to Himself was to be a pledge, that in spite of "his own body now dead," and "the deadness of Sarah's womb" (Rom 4:19), God could and would give him the promised innumerable posterity. On the other hand, God required this of Abram, "Walk before Me (cf. Gen 5:22) and be blameless" (Gen 6:9). "Just as righteousness received in…

We have here Abraham's obedience to the law of circumcision. He himself and all his family were circumcised, so receiving the token of the covenant and distinguishing themselves from other families, that had no part nor lot in the matter. 1. It was an implicit obedience: He did as God had said to him, and did not ask why or wherefore. God's will was not only a law to him, but a reason; he did it because God told him. 2. It was a speedy obedience: In the self-same day, Gen 17:23, Gen 17:26. Sincere obedience is not dilatory, Psa 119:60. While the command is yet sounding in our ears, and the sense of duty is fresh, it is good to apply ourselves to it immediately, lest we deceive ourselves by putting it off to a more convenient season. 3. It was a universal obedience: He did not circumcise his family and excuse himself, but set them an example; nor did he take the comfort of the seal of the covenant to himself only, but desired that all his might share with him in it. This is a good example to masters of families; they and their houses must serve the Lord. Though God's covenant was not established with Ishmael, yet he was circumcised; for children of believing parents, as such, have a right to the privileges of the visible church, and the seals of the covenant, whatever they may prove afterwards. Ishmael is blessed, and therefore circumcised. 4. Abraham did this though much might be objected against it. Though circumcision was painful, - though to grown men it was shameful, - though, while they were sore and unfit for action, their enemies might take advantage against them, as Simeon and Levi did against the Shechemites, - though Abraham was ninety-nine years old, and had been justified and accepted of God long since, - though so strange a thing done religiously might be t…

17:23-27 Having received God’s word about Isaac, Abraham immediately complied with God’s instructions. He implemented the rite of circumcision as an act of faith; it signified their participation in the covenant (cp. Rom 4:11-12; Gal 5:2-6, 11; 6:15; Phil 3:2-3; Col 2:11-12; 1 Pet 3:21).