But God came to Abimelech in a dream by night, and said to him, Behold, thou art but a dead man, for the woman which thou hast taken; for she is a man's wife.
By the ministry of dreams and visions of the night, in the early ages of the world, the Lord was pleased to convey many great and important discoveries, not only to the faithful, but (for the benefit of his people), to the profane also. Genesis 41:1 etc. Daniel 2:1 etc.