Genesis 15:9–12

9 He said to him, “Bring me a three-year-old cow, a three-year-old female goat, a three-year-old ram, a turtledove, and a young pigeon.”

10 So he brought all these to him, cut them in half, and laid the pieces opposite each other, but he did not cut the birdsh in half. 11 Birds of prey came down on the carcasses, but Abram drove them away. 12 As the sun was setting, a deep sleepi came over Abram, and suddenly great terror and darkness descended on him.