We have here the assurance given to Abram of a numerous offspring which should descend from him, in which observe,

I.Abram's repeated complaint, Gen 15:2, Gen 15:3. This was that which gave occasion to this promise. The great affliction that sat heavy upon Abram was the want of a child; and the complaint of this he here pours out before the Lord, and shows before him his trouble, Psa 142:2. Note, Though we must never complain of God, yet we have leave to complain to him, and to be large and particular in the statement of our grievances; and it is some ease to a burdened spirit to open its case to a faithful and compassionate friend: such a friend God is, whose ear is always open. Now his complaint is four-fold: - 1. That he had no child (Gen 15:3): Behold, to me thou hast given no seed; not only no son, but no seed; if he had had a daughter, from her the promised Messiah might have come, who was to be the seed of the woman; but he had neither son nor daughter. He seems to lay an emphasis on that, to me. His neighbours were full of children, his servants had children born in his house. "But to me," he complains, "thou hast given none;" and yet God had told him he should be a favourite above all. Note, Those that are written childless must see God writing them so. Again, God often withholds those temporal comforts from his own children which he gives plentifully to others that are strangers to him. 2. That he was never likely to have any, intimated in that I go, or "I am going, childless, going into years, going down the hill apace; nay, I am going out of the world, going the way of all the earth. I die childless," so the Septuagint, "I leave the world, and leave no child behind me." 3. That his servants were for the present and were likely to be to him instead of sons. While he lived, the steward of his house was Eliezer of Damascus; to him he committed the care of his family and estate, who might be faithful, but only as a servant, not as a son. When he died, one born in his house would be his heir, and would bear rule over all that for which he had laboured, Ecc 2:18, Ecc 2:19, Ecc 2:21. God had already told him that he would make of him a great nation (Gen 12:2), and his seed as the dust of the earth (Gen 13:16); but he had left him in doubt whether it should be his seed begotten or his seed adopted, by a son of his loins or only a son of his house. "Now, Lord," says Abram, "if it be only an adopted son it must be one of my servants, which will reflect disgrace upon the promised seed, that is to descend from him." Note, While promised mercies are delayed our unbelief and impatience are apt to conclude them denied. 4. That the want of a son was so great a trouble to him that it took away the comfort of all his enjoyments: "Lord, what wilt thou give me? All is nothing to me, if I have not a son." Now, If we suppose that Abram looked no further than a temporal comfort, this complaint was culpable. God had, by his providence, given him some good things, and more by his promise; and yet Abram makes no account of them, because he has not a son. It did very ill become the father of the faithful to say, What wilt thou give me, seeing I go childless, immediately after God had said, I am thy shield, and thy exceedingly great reward. Note, Those do not rightly value the advantages of their covenant-relation to God and interest in him who do not think them sufficient whatever. But, (2.) If we suppose that Abram, herein, had a eye to the promised seed, the importunity of his desire was very commendable: all was nothing to him, if he had not the earnest of that great blessing, and an assurance of his relation to the Messiah, of which God had already encouraged him to maintain the expectation. He has wealth, and victory, and honour; but, while he is kept in the dark about the main matter, it is all nothing to him. Note, Till we have some comfortable evidence of our interest in Christ and the new covenant, we should not rest satisfied with any thing else. "This, and the other, I have; but what will all this avail me, if I go Christless?" Yet thus far the complaint was culpable, that there was some diffidence of the promise at the bottom of it, and a weariness of waiting God's time. Note, True believers sometimes find it hard to reconcile God's promises and his providences, when they seem to disagree.

II.God's gracious answer to this complaint. To the first part of the complaint (Gen 15:2) God gave no immediate answer, because there was something of fretfulness in it; but, when he renews his address somewhat more calmly (Gen 15:3), God answered him graciously. Note, If we continue instant in prayer, and yet pray with a humble submission to the divine will, we shall not seek in vain. 1. God gave him an express promise of a son, Gen 15:4. This that is born in thy house shall not be thy heir, as thou fearest, but one that shall come forth out of thy own bowels shall be thy heir. Note, (1.) God makes heirs; he says, "This shall not, and this shall;" and whatever men devise and design, in settling their estates, God's counsel shall stand. (2.) God is often better to us than our own fears, and gives the mercy we had long despaired of. 2. To affect him the more with this promise, he took him out, and showed him the stars (this vision being early in the morning, before day), and then tells him, So shall thy seed be, Gen 15:5. (1.) So numerous; the stars seem innumerable to a common eye: Abram feared he should have no child at all, but God assured him that the descendants from his loins should be so many as not to be numbered. (2.) So illustrious, resembling the stars in splendour; for to them pertained the glory, Rom 9:4. Abram's seed, according to his flesh, were like the dust of the earth (Gen 13:16), but his spiritual seed are like the stars of heaven, not only numerous, but glorious, and very precious.

III.Abram's firm belief of the promise God now made him, and God's favourable acceptance of his faith, Gen 15:6. 1. He believed in the Lord, that is, he believed the truth of that promise which God had now made him, resting upon the irresistible power and the inviolable faithfulness of him that made it. Hath he spoken, and shall he not make it good? Note, Those who would have the comfort of the promises must mix faith with the promises. See how the apostle magnifies this faith of Abram, and makes it a standing example, Rom 4:19-21. He was not weak in faith; he staggered not at the promise; he was strong in faith; he was fully persuaded. The Lord work such a faith in every one of us! Some think that his believing in the Lord respected, not only the Lord promising, but the Lord promised, the Lord Jesus, the Mediator of the new covenant. He believed in him, that is, received and embraced the divine revelation concerning him, and rejoiced to see his day, though at so great a distance, Joh 8:56. 2. God counted it to him for righteousness; that is, upon the score of this he was accepted of God, and, as the rest of the patriarchs, by faith he obtained witness that he was righteous, Heb 11:4. This is urged in the New Testament to prove that we are justified by faith without the works of the law (Rom 4:3; Gal 3:6); for Abram was so justified while he was yet uncircumcised. If Abram, that was so rich in good works was not justified by them, but by his faith, much less can we, that are so poor in them. This faith, which was imputed to Abram for righteousness, had lately struggled with unbelief (Gen 15:2), and, coming off a conqueror, it was thus crowned, thus honoured. Note, A fiducial practical acceptance of, and dependence upon, God's promise of grace and glory, in and through Christ, is that which, according to the tenour of the new covenant, gives us a right to all the blessings contained in that promise. All believers are justified as Abram was, and it was his faith that was counted to him for righteousness.

Look now toward heaven - It appears that this whole transaction took place in the evening; see on Gen 13:14 (note). Abram had either two visions, that recorded in Gen 15:1, and that in Gen 15:12, etc.; or what is mentioned in the beginning of this chapter is a part of the occurrences which took place after the sacrifice mentioned Gen 15:9, etc.: but it is more likely that there was a vision of that kind already described, and afterwards a second, in which he received the revelation mentioned Gen 15:13-16. After the first vision he is brought forth abroad to see if he can number the stars; and as he finds this impossible, he is assured that as they are to him innumerable, so shall his posterity be; and that all should spring from one who should proceed from his own bowels - one who should be his own legitimate child.

And he brought him forth abroad,.... Out of his tent into the open air, which was done through his call, and at his direction; or by an impulse upon his mind; or this might not be real and local, only vision:

and said, look now towards heaven; either with his bodily eyes, or with the eyes of his mind:

and tell the stars, if thou be able to number them; this looks as if it were in a vision that this was said to him, and what follows done in the day, since it was in the daytime, before the sun was set, Gen 15:12, when the stars could not be seen; and therefore were represented to his mind, and he was directed to consider them in it, whether they could be numbered by him or not: but this might be in the preceding night, or early in the morning, before the sun arose, that Abram was directed to go out of his tent, and view the heavens, and the multitude of stars in them, and try if he could number them; and he might be employed all the day following till sunset, in preparing the creatures for the sacrifice, in cutting them asunder, laying their pieces in order, and watching them, and driving the fowls from them. The multitude of his seed is before signified by the dust of the earth, which cannot be numbered, Gen 13:16, and here by the stars of the sky innumerable; as they are to man, though not to God: some have pretended to number them, as Aratus, Eudoxus, and Hipparchus, among the ancients, and also modern astronomers; but then they are such only that are visible to the eye, and in one hemisphere, and their accounts are very various; whereas there are multitudes to be discerned by glasses, and some not to be distinguished, as in the galaxy, or milky way, and others in the other hemisphere. Now Abram here is bid to try what he could do, and this was in his own way; for he is said by many Heathen writers (h) to be famous for arithmetic and astrology, or astronomy; but as great a master as he was in these sciences, be was not able to number the stars, which is here plainly intimated, since it follows:

and he said, so shall thy seed be: as innumerable as the stars, as they were, even his natural seed, Heb 11:12; and especially his spiritual seed, who have the same kind of faith he had, and as they will be in the latter day particularly, Hos 1:10.

(h) Apud Euseb. ut supra, (Evangel. Praepar.) l. 9. c. 16, 17. Orpheus apud Clement. Stromat. l. 5. p. 607.

This shall not be thine heir--To the first part of his address no reply was given; but having renewed it in a spirit of more becoming submission, "whereby shall I know that I shall inherit it" [Gen 15:8], he was delighted by a most explicit promise of Canaan, which was immediately confirmed by a remarkable ceremony.