The account of Abraham searching for a bride for his son, Isaac, ought to impress upon us the serious nature of choosing the right person to marry. Abraham chose his oldest and most trusted servant to find a wife for Isaac. Before going on his search, the servant was required to make the most solemn of oaths, “Please, put your hand under my thigh” (Gen. 24:2). Then, he was instructed specifically who not to choose and who to choose for Isaac.
“And I will make you swear by the Lord, the God of heaven and the God of the earth, that:
(1) you will not take a wife for my son from the daughters of the Canaanites…; but
(2) you shall go to my country and to my family, and take a wife for my son Isaac” (24:3-4).
Isaac was not to marry a foreigner, who would not share his love and devotion to the God of heaven. But, he was to marry one who shared a common relation and common blood. Does it matter who we marry? It did then (cf. Gen. 27:46) and it does today (cf. 2 Cor. 6:14-7:1).