Genesis 22:2-5

Then God said, “Take your only son, Isaac, the son you love, and go to the land of Moriah. Kill him there and offer him as a whole burnt offering on one of the mountains I will tell you about.” Abraham got up early in the morning and saddled his donkey. He took Isaac and two servants with him. After he cut the wood for the sacrifice, they went to the place God had told them to go. On the third day Abraham looked up and saw the place in the distance. He said to his servants, “Stay here with the donkey. My son and I will go over there and worship, and then we will come back to you.”