Jamieson, Fausset and Brown on Genesis 41:25

Ge 41:25-36. Joseph Interprets Pharaoh's Dreams.

25. Joseph said, ... The dream ... is one--They both pointed to the same event--a remarkable dispensation of seven years of unexampled abundance, to be followed by a similar period of unparalleled dearth. The repetition of the dream in two different forms was designed to show the absolute certainty and speedy arrival of this public crisis; the interpretation was accompanied by several suggestions of practical wisdom for meeting so great an emergency as was impending.