Genesis 24:1-67
Abraham was now very old, and the Lord had blessed him in every way. He said to the senior servant in his household, the one in charge of all that he had, “Put your hand under my thigh. I want you to swear by the Lord, the God of heaven and the God of earth, that you will not get a wife for my son from the daughters of the Canaanites, among whom I am living, but will go to my country and my own relatives and get a wife for my son Isaac.”
The servant asked him, “What if the woman is unwilling to come back with me to this land? Shall I then take your son back to the country you came from?”
“Make sure that you do not take my son back there,” Abraham said. “The Lord, the God of heaven, who brought me out of my father’s household and my native land and who spoke to me and promised me on oath, saying, ‘To your offspring I will give this land’—he will send his angel before you so that you can get a wife for my son from there. If the woman is unwilling to come back with you, then you will be released from this oath of mine. Only do not take my son back there.” So the servant put his hand under the thigh of his master Abraham and swore an oath to him concerning this matter.
Before he had finished praying, Rebekah came out with her jar on her shoulder. She was the daughter of Bethuel son of Milkah, who was the wife of Abraham’s brother Nahor. The woman was very beautiful, a virgin; no man had ever slept with her. She went down to the spring, filled her jar and came up again.
Laban and Bethuel answered, “This is from the Lord; we can say nothing to you one way or the other. Here is Rebekah; take her and go, and let her become the wife of your master’s son, as the Lord has directed.”
Then they said, “Let’s call the young woman and ask her about it.” So they called Rebekah and asked her, “Will you go with this man?” “I will go,” she said.
Then the servant told Isaac all he had done. Isaac brought her into the tent of his mother Sarah, and he married Rebekah. So she became his wife, and he loved her; and Isaac was comforted after his mother’s death.
Why?
All of this story is under the blessing of the Lord, and implemented with a royal servant of Abraham and Abraham's faith in the Lord
How?
We don't know everything, but when we pray to the Lord, God will show us the way to make it, if we have faith in the Lord!