Genesis 15:12 KJV
And when the sun was going down, a deep sleep fell upon Abram; and, lo, an horror of great darkness fell upon him.
Genesis 15:12, King James Version
In context
11 And when the fowls came down upon the carcases, Abram drove them away.
12 And when the sun was going down, a deep sleep fell upon Abram; and, lo, an horror of great darkness fell upon him.
13 And he said unto Abram, Know of a surety that thy seed shall be a stranger in a land that is not theirs, and shall serve them; and they shall afflict them four hundred years;