Genesis 15:10 DBY

⁸  And he said, Lord Jehovah, how shall I know that I shall possess it?

⁹  And he said to him, Take me a heifer of three years old, and a she-goat of three years old, and a ram of three years old, and a turtle-dove, and a young pigeon.

¹⁰  And he took all these, and divided them in the midst, and laid the half of each opposite its fellow; but the birds he did not divide.

¹¹  And the birds of prey came down on the carcases; and Abram scared them away.

¹²  And as the sun was just going down, a deep sleep fell upon Abram; and behold, a horror, a great darkness, fell upon him.