What Does The Number Forty Mean In The Bible?From series What Do The Numbers In The Bible Mean?.
Forty: The testing number
The number 40 is a significant, commonly used number in the bible. The sum of the digits in the number 40 equals four (4 + 0 = 4). Therefore the number 40 is a special use of the number four. When the bible refers to physical tests the number four and its other equivalent numbers are used.
Moses spent 40 days and 40 nights on Mt Sinai; Jesus spent the same period being tempted in the wilderness ; spies were sent into the land for 40 days; the children of Israel spend 40 years in the wilderness; the great flood in Noah’s time lasts 40 days.
Summarized from Cracking The Bible’s Numeric Code by Dr. R.J. Gannaway