Genesis 15:10-12

Amplified Bible

¹⁰ So Abram brought all these to Him and ^[a]cut them down the middle, and laid each half opposite the other; but he did not cut the birds. ¹¹ The birds of prey swooped down on the carcasses, but Abram drove them away.

¹² When the sun was setting, a deep sleep overcame Abram; and a horror (terror, shuddering fear, nightmare) of great darkness overcame him.