Genesis 22:9-19
22:9 When they came to the place God had told him about, Abraham built the altar there and arranged the wood on it. Next he tied up his son Isaac and placed him on the altar on top of the wood.
22:10 Then Abraham reached out his hand, took the knife, and prepared to slaughter his son.
22:11 But the Lord’s angel called to him from heaven, “Abraham! Abraham!” “Here I am!” he answered.
22:12 “Do not harm the boy!” the angel said. “Do not do anything to him, for now I know that you fear God because you did not withhold your son, your only son, from me.”
22:13 Abraham looked up and saw behind him a ram caught in the bushes by its horns. So he went over and got the ram and offered it up as a burnt offering instead of his son.
22:14 And Abraham called the name of that place “The Lord provides.” It is said to this day, “In the mountain of the Lord provision will be made.”
22:15 The Lord’s angel called to Abraham a second time from heaven
22:16 and said, “‘I solemnly swear by my own name,’ decrees the Lord, ‘that because you have done this and have not withheld your son, your only son,
22:17 I will indeed bless you, and I will greatly multiply your descendants so that they will be as countless as the stars in the sky or the grains of sand on the seashore. Your descendants will take possession of the strongholds of their enemies.
22:18 Because you have obeyed me, all the nations of the earth will pronounce blessings on one another using the name of your descendants.’”
22:19 Then Abraham returned to his servants, and they set out together for Beer Sheba where Abraham stayed.