Genesis 28:15

He dreamed and saw a stairway set upon the earth, and its top reached to heaven. Behold, the angels of God were ascending and descending on it.

Behold, the LORD stood above it, and said, “I am the LORD, the God of Abraham your father, and the God of Isaac. I will give the land you lie on to you and to your offspring.

Your offspring will be as the dust of the earth, and you will spread abroad to the west, and to the east, and to the north, and to the south. In you and in your offspring, all the families of the earth will be blessed.

Jacob awakened out of his sleep, and he said, “Surely the LORD is in this place, and I didn’t know it.”

He was afraid, and said, “How awesome this place is! This is none other than God’s house, and this is the gate of heaven.”

Jacob rose up early in the morning, and took the stone that he had put under his head, and set it up for a pillar, and poured oil on its top.