Genesis 15:7-9

King James Version

⁷ And he said unto him, I am the Lord that brought thee out of Ur of the Chaldees, to give thee this land to inherit it.

⁸ And he said, Lord God, whereby shall I know that I shall inherit it?

⁹ And he said unto him, Take me an heifer of three years old, and a she goat of three years old, and a ram of three years old, and a turtledove, and a young pigeon.