And I will make thee swear by the LORD, the God of heaven, and the God of the earth, that thou shalt not take a wife unto my son of the daughters of the Canaanites, among whom I dwell:

That I may make thee swear by the Lord the God of heaven and earth, that thou take not a wife for my son, of the daughters of the Chanaanites, among whom I dwell:

and I will make thee swear by Jehovah, the God of the heavens and the God of the earth, that thou take not a wife for my son of the daughters of the Canaanites, among whom I am dwelling;

and I cause thee to swear by Jehovah, God of the heavens, and God of the earth, that thou dost not take a wife for my son from the daughters of the Canaanite, in the midst of whom I am dwelling;

And take an oath by the Lord, the God of heaven and the God of the earth, that you will not get a wife for my son Isaac from the daughters of the Canaanites among whom I am living;

Et adjurabo to per Iehovam Deum coeli, et Deum terrae, quod non capies uxorem filio meo de filiabus Chenaanaei, in cujus medio ego habito:

That thou shalt not take a wife. The kind of discipline which prevailed in Abraham's house is here apparent. Although this man was but a servant, yet, because he was put in authority by the master of the family, his servile condition did not prevent him from being next in authority to his lord; so that Isaac himself, the heir and successor of Abraham, submitted to his direction. To such an extent did the authority of Abraham and reverence for him prevail, that when he substituted a servant in his place, he caused this servant, by his mere will or word, to exercise a power which other masters of families find it difficult to retain for themselves. The modesty also of Isaac, who suffered himself to be governed by a servant, is obvious; for it would have been in vain for Abraham to enter into engagements with his servant, had he not been persuaded that his son would prove submissive and tractable. It here appears what great veneration he cherished towards his father; because Abraham, relying on Isaac's obedience, confidently calls his servant to him. Now this example should be taken by us as a common rule, to show that it is not lawful for the children of a family to contract marriage, except with the consent of parents; and certainly natural equity dictates that, in a matter of such importance, children should depend upon the will of their parents. How detestable, therefore, is the barbarity of the Pope, who has dared to burst this sacred bond asunder! Wherefore the wantonness of youths is to be restrained, that they may not rashly contract nuptials without consulting their fathers.

I will make thee swear - See note on Genesis 24:9.
Of the Canaanites - Because these had already been devoted to slavery, etc., and it would have been utterly inconsistent as well with prudence as with the design of God to have united the child and heir of the promise with one who was under a curse, though that curse might be considered to be only of a political nature. See the curse of Canaan, Genesis 9:25 (note).

And I will make thee (b) swear by the LORD, the God of heaven, and the God of the earth, that thou shalt not take a wife unto my son of the daughters of the Canaanites, among whom I dwell:
(b) This shows that an oath may be required in a lawful cause.

And I will make thee swear by the Lord, the God of heaven, and the God of earth,.... The Maker and possessor of heaven and earth, by whom Abraham used to swear whenever he did, and by whom only men should swear, see Genesis 14:22. The Targum of Jonathan is,"I will make thee swear by the name of the Word of the Lord God,''which strengthens the sense given of the rite before observed:
that thou wilt not take a wife unto my son of the daughters of the Canaanites, among whom I dwell; these being not only idolaters, and very wicked people, degenerated yet more and more, but were the seed of the accursed Canaan; and who in process of time would be dispossessed of the land, and be destroyed. Now though Isaac was forty years of age, and one would think at an age sufficient to have chosen a wife for himself; but as Abraham knew that he had a great respect for this servant, and would be influenced by him in such a choice, and especially as this affair was now about to be committed to his care, and no doubt with the consent of Isaac, therefore he thus charges and adjures him.

thou shalt not take a wife, &c.--Among pastoral tribes the matrimonial arrangements are made by the parents, and a youth must marry, not among strangers, but in his own tribe--custom giving him a claim, which is seldom or never resisted, to the hand of his first cousin. But Abraham had a far higher motive--a fear lest, if his son married into a Canaanitish family, he might be gradually led away from the true God.