As for me, behold, my covenant is with thee [1] They who translate the passage, Behold, I make a covenant with thee,' or, Behold, I and my covenant with thee;' do not seem to me faithfully to represent the meaning of Moses. For, first, God declares that he is the speaker, in order that absolute authority may appear in his words. For since our faith can rest on no other foundation than his eternal veracity, it becomes, above all things, necessary for us to be informed that what is proposed to us, has proceeded from his sacred mouth. Therefore, the pronoun I, is to be read separately as a preface to the rest; in order that Abram might have a composed mind, and might engage, without hesitation, in the proposed covenant. Whence a useful doctrine is deduced, that faith necessarily has reference to God: because, although all angels and men should speak to us, never would their authority appear sufficiently great to confirm our minds. And it cannot but be, that we should at times waver, until that voice sounds from heaven, I am.' Whence also it appears what kind of religion is that of the Papacy: where, instead of the word of God, the fictions of men are alone the subject of boast. And they are justly exposed to continual fluctuation, who, depending upon the word of men, act unjustly towards God, by ascribing to them more than is right. But let us have no other foundation of our faith than this word I', not as spoken indifferently by any mouth whatever, but by the mouth of God alone. If, however, myriads of men set themselves in opposition, and proudly exclaim, We, we,' let this single word of God suffice to dissipate the empty sound of multitudes. And thou shalt be a father of many nations [2] It is asked what is this multitude of nations? It obviously appears, that different nations had their origin from the holy Patriarch: for Ishmael grew to a great people: the Idumeans, from another branch were spread far and wide; large families also sprung from other sons, whom he had by Keturah. But Moses looked still further, because, indeed, the Gentiles were to be, by faith, inserted into the stock of Abram, although not descended from him according to the flesh: of which fact Paul is to us a faithful interpreter and witness. For he does not gather together the Arabians, Idumeans, and others, for the purpose of making Abram the father of many nations; but he so extends the name of father, as to make it applicable to the whole world, in order that the Gentiles, in other respects strangers, and separated from each other, might, from all sides combine in one family of Abram. I grant, indeed, that, for a time, the twelve tribes were as so many nations; but only in order to form a prelude to that immense multitude, which, at length, is collected together as the one family of Abram. And that Moses speaks of those sons, who, being regenerate by faith, acquire the name, and pass over into the stock of Abram, is sufficiently proved by this one consideration. For the carnal race of Abram could not be divided into different nations, without causing those who had departed from the unity, to be immediately accounted strangers. Thus the Church rejected the Ishmaelites, the Idumeans, and others, and regarded them as foreigners. Abram therefore was not called the father of many nations, because his seed was to be divided into many nations; but rather, because many nations were to be gathered together unto him. A change also of his name is added as a token. For he begins to be called Abraham, in order that the name itself may teach him, that he should not be the father of one family only; but that a progeny should rise up to him from an immense multitude, beyond the common course of nature. For this reason, the Lord so often renews this promise; because the very repetition of it shows that no common blessing was promised.

Footnotes

1 - "Ego, ecce pactum meum tecum." "I, behold, my covenant is with thee."

2 - "Multitudinis gentium." "Of a multitude of nations."

As for me. - The one party to the covenant is here made prominent, as in Genesis 17:9 the other party is brought out with like emphasis. The exalted Being who has entered into it imparts a grandeur, solemnity, and excellence to the covenant. "Father of many nations." The promise of seed is here expanded and particularized. A multitude of nations and kings are to trace their descent from Abram. This is true in a literal sense. The twelve tribes of Israel and many Arab tribes, the twelve princes of Ishmael, Keturah's descendants, and the dukes of Edom sprang from him. But it is to be more magnificently realized in a spiritual sense. "Nations" is a term usually applied, not to the chosen people, but to the other great branches of the human race. This points to the original promise, that in him should all the families of the earth be blessed. "Abraham." The father of many nations is to be called by a new name, as he has come to have a new nature, and been elevated to a new dignity. The high father has become the father of the multitude of the faithful.

As for me, behold, my covenant [is] with thee, and thou shalt be a (a) father of many nations.
(a) Not only physical descendants, but of a far greater multitude by faith, (Romans 4:17).

As for me, behold, my covenant is with thee,.... Who was gracious to make it, faithful to keep it, and immutable in it, though Abram was but a man, and sinful:
and thou shalt be a father of many nations: as he was of many Arabian nations, and of the Turks in the line of Ishmael; and of the Midianites, and others, in the line of his sons by Keturah; and of the Israelites in the line of Isaac, as well as of the Edomites in the line of Esau; and in a spiritual sense the father of all that believe, in all the nations of the world, circumcised or uncircumcised, as the apostle explains it, Romans 4:11.

my covenant is with thee--Renewed mention is made of it as the foundation of the communication that follows. It is the covenant of grace made with all who believe in the Saviour.

On the part of God אני placed at the beginning absolutely: so far as I am concerned, for my part) it was to consist of this: (1) that God would make Abram the father (אב instead of אני chosen with reference to the name Abram) of a multitude of nations, the ancestor of nations and kings; (2) that He would be God, show Himself to be God, in an eternal covenant relation, to him and to his posterity, according to their families, according to all their successive generations; and (3) that He would give them the land in which he had wandered as a foreigner, viz., all Canaan, for an everlasting possession. As a pledge of this promise God changed his name אברם, i.e., high father, into אברהם, i.e., father of the multitude, from אב and רהם, Arab. ruhâm = multitude. In this name God gave him a tangible pledge of the fulfilment of His covenant, inasmuch as a name which God gives cannot be a mere empty sound, but must be the expression of something real, or eventually acquire reality.

The promise is here introduced with solemnity: As for me, saith the Great God, Behold, behold and admire it, behold and be assured of it, my covenant is with thee. And thou shalt be a father of many nations - This implies, That his seed after the flesh should be very numerous, both in Isaac and in Ishmael, and in the sons of Keturah. And the event answered, for there have been, and are, more of the children of men descended from Abraham, than from any one man at equal distance with him from Noah, the common root. That all believers, in every age, should be looked upon as his spiritual seed, as the father of the faithful. In this sense the apostle directs us to understand this promise, Romans 4:16-17. He is the father of those, in every nation, that, by faith, enter into covenant with God, and (as the Jewish writers express it) are gathered under the wings of the divine majesty.