Genesis 15:7-11

7Then He said to him, “I am Adonai who brought you out from Ur of the Chaldeans, in order to give you this land to inherit it.”

8So he said, “My Lord Adonai, how will I know that I will inherit it?”

9Then He said to him, “Bring Me a three year old young cow, a three year old she-goat, a three year old ram, a turtle-dove and a young bird.”

10So he brought all these to Him and cut them in half, and put each piece opposite the other; but he did not cut the birds.

11Then birds of prey came down upon the carcasses, but Abram drove them away.