Genesis 15:5-17

And he brought him forth abroad, and said, Look now toward heaven, and number the stars, if thou be able to number them: and he said unto him, So shall thy seed be. And he believed in Jehovah; and he reckoned it to him for righteousness. And he said unto him, I am Jehovah that brought thee out of Ur of the Chaldees, to give thee this land to inherit it. And he said, O Lord Jehovah, whereby shall I know that I shall inherit it? And he said unto him, Take me a heifer three years old, and a she-goat three years old, and a ram three years old, and a turtle-dove, and a young pigeon. And he took him all these, and divided them in the midst, and laid each half over against the other: but the birds divided he not. And the birds of prey came down upon the carcasses, and Abram drove them away. And when the sun was going down, a deep sleep fell upon Abram; and, lo, a horror of great darkness fell upon him. And he said unto Abram, Know of a surety that thy seed shall be sojourners in a land that is not theirs, and shall serve them; and they shall afflict them four hundred years; and also that nation, whom they shall serve, will I judge: and afterward shall they come out with great substance. But thou shalt go to thy fathers in peace; thou shalt be buried in a good old age. And in the fourth generation they shall come hither again: for the iniquity of the Amorite is not yet full. And it came to pass, that, when the sun went down, and it was dark, behold, a smoking furnace, and a flaming torch that passed between these pieces.