12 As the sun was setting, Abram fell into a deep sleep, and a thick and dreadful darkness came over him.

12 And when the sun was going down, a deep sleep fell upon Abram; and, lo, an horror of great darkness fell upon him.

12 As the sun was going down, Abram fell into a deep sleep, and a terrifying darkness came down over him.

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

12 As the sun was going down, Abram fell into a deep sleep. While he was asleep, a very terrible darkness came.

12 And when the sun was going down, a deep sleep fell upon Abram; and, lo, a horror of great darkness fell upon him.

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.

12 As the sun was just about to set, a deep sleep—a dreadful, deep darkness—came over Abram. 

12 As the sun was setting, a deep sleep fell on Abram, and suddenly great terror and darkness descended on him.

12 As the sun was going down, a deep sleep fell upon Abram, and a deep and terrifying darkness descended upon him.

12 And it happened, as the sun went down, then a deep sleep fell upon Abram and, behold, a great terrifying darkness fell upon him.

12 As the sun was going down, Abram fell into a deep sleep. A thick and terrible darkness covered him.

12 Now when the sun was going down, a deep sleep fell upon Abram; and behold, terror and great darkness fell upon him.