The number forty is the fourth multiple of ten and is biblically significant.

Positive: Dreaming of forty could represent passing tests and trials. It could also represent a fast or consecration.

Negative: The number forty could also represent failing tests and trials. It could represent judgment such as forty days and nights of rain.

(Matthew 4:2; Numbers 13:25; Numbers 14:33-34; Exodus 34:27-28; Matthew 26:15; Acts 1:6-7, Acts 7:30).