17:15-22 Here is the promise made to Abraham of a son by Sarai, in whom the promise made to him should be fulfilled. The assurance of this promise was the change of Sarai's name into Sarah. Sarai signifies my princess, as if her honour were confined to one family only; Sarah signifies a princess. The more favours God confers upon us, the more low we should be in our own eyes. Abraham showed great joy; he laughed, it was a laughter of delight, not of distrust. Now it was that Abraham rejoiced to see Christ's day; now he saw it and was glad, Joh 8:56. Abraham, dreading lest Ishmael should be abandoned and forsaken of God, put up a petition on his behalf. God gives us leave in prayer to be particular in making known our requests. Whatever is our care and fear, should be spread before God in prayer. It is the duty of parents to pray for their children, and the great thing we should desire is, that they may be kept in covenant with Him, and may have grace to walk before him in uprightness. Common blessings are secured to Ishmael. Outward good things are often given to those children of godly parents who are born after the flesh, for their parents' sake. Covenant blessings are reserved for Isaac, and appropriated to him.

Verse 20 - And as for Ishmael, I have heard thee (meaning, also, "and will grant thy prayer; an allusion to the significance of the name Ishmael, "God hears"): Behold, I have blessed him, and will make him fruitful, and will multiply him exceedingly; twelve princes shall he begot (vide Genesis 25:12-16), and I will make him a great nation.

And as for Ishmael, I have heard thee, &c. Took notice of his prayer for him, and accepted of and would answer him, and did, as follows:

behold, I have blessed him; determined in his mind to bless him, promised to bless him, Genesis 16:10; had blessings laid up and in reserve for him:

and will make him fruitful, and will multiply him exceedingly; as he did, many of the Arabian nations, the Hagarenes, Saracens, and Turks, all springing from him:

twelve princes shall he beget; whose names are given, Genesis 25:13; and their number there exactly agrees with this prophecy. Melo (s), the Heathen writer above mentioned, says, that Abraham, of his other wife, the Egyptian servant (that is, Hagar), begat twelve sons, which he mistakes for twelve sons of Ishmael, his son by Hagar; and, adds he, these going into Arabia, divided the country among them, and were the first that reigned over the inhabitants of it; hence down to our times the kings of the Arabians have twelve names like to those. So the Saracens were divided into twelve tribes, of which there were so many "phylarchi", or governors; and the Turks also are divided into the same number of tribes (t). And

I will make him a great nation; as the nation of the Turks especially is; and the Turkish empire is frequently called in Jewish writings the kingdom of Ishmael, as the Arabic language is called the Ishmaelitish language.

(s) Apud. Euseb. ut supra. (Evangel. Praepar. l. 9. c. 19. p. 421.) (t) Vid. Vales. Not. in Ammian. Marcellin. l. 24. p. 283.

17:20 As for Ishmael, I have heard thee; I have blessed him - That is, I have many blessings in store for him. His posterity shall be numerous; I will multiply him exceedingly; They shall be considerable; twelve princes shall he beget. We may charitably hope that spiritual blessings also were bestowed upon him, though the visible church was not brought out of his loins.

Genesis 17:20 Parallel Commentaries
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