2 So Abraham said to the oldest servant of his house, who ruled over all that he had, "Please, put your hand under my thigh, 3 and I will make you swear by the Lord, the God of heaven and the God of the earth, that you will not take a wife for my son from the daughters of the Canaanites, among whom I dwell; 4 but you shall go to my country and to my family, and take a wife for my son Isaac." 5 And the servant said to him, "Perhaps the woman will not be willing to follow me to this land. Must I take your son back to the land from which you came?" 6 But Abraham said to him, "Beware that you do not take my son back there. 7 The Lord God of heaven, who took me from my father's house and from the land of my family, and who spoke to me and swore to me, saying, 'To your descendants I give this land,' He will send His angel before you, and you shall take a wife for my son from there. 8 And if the woman is not willing to follow you, then you will be released from this oath; only do not take my son back there." 9 So the servant put his hand under the thigh of Abraham his master, and swore to him concerning this matter.

Matthew Henry's Commentary on Genesis 24:2-9

Commentary on Genesis 24:1-9

(Read Genesis 24:1-9)

The effect of good example, good teaching, and the worship of God in a family, will generally appear in the piety, faithfulness, prudence, and affection of the servants. To live in such families, or to have such servants, both are blessings from God which should be highly valued, and thankfully acknowledged. But no concern in life is of greater importance to ourselves, to others, or to the church of God, than marriage. It therefore ought always to be undertaken with much care and prudence, especially with reference to the will of God, and with prayer for his direction and blessing. Where good parents are not consulted and regarded, the blessing of God cannot be expected. Parents, in disposing of their children, should carefully consult the welfare of their souls, and their furtherance in the way to heaven. Observe the charge Abraham gave to a good servant, one whose conduct, faithfulness, and affection, to him and his family, he had long known. Observe also, that Abraham remembers that God had wonderfully brought him out of the land of his birth, by the call of his grace; and therefore doubts not but He will prosper his care, not to bring his son thither again. God will cause that to end in our comfort, in which we sincerely aim at his glory.