As the sun was setting, Abram fell into a deep sleep, and suddenly great terror and darkness overwhelmed him.
12. A deep sleep fell upon Abram . The vision is now mingled with a dream. Thus the Lord here joins those two kinds of communication together, which I have before related from Numbers 12:6, where it is said, ‘When I appear unto my servants the prophets, I speak to them in a vision or a dream.’ mention has already been made of a vision...
We have here a full and particular discovery made to Abram of God's purposes concerning his seed. Observe, I. The time when God came to him with this discovery: When the sun was going down, or declining, about the time of the evening oblation, Kg1 18:36; Dan 9:21.
Commenting on Genesis 15:12-16
And he said unto Abram,.... While he was in a deep sleep; this he said to him in a vision of prophecy: know of a surety, or "in knowing thou shall or mayest know" (n); and be assured of it, being now told it by the Lord himself, who foreknows all things that ever come to pass; many of which he acquaints his people with...