Forty
'Forty' represents completeness because 'four' and 'ten' both mean what is complete. Forty is the product of four and ten. Compound numbers have a meaning similar to the simple numbers which compose them, and all numbers in the Word represent spiritual realities.
(Riferimenti: Arcana Coelestia 9437; Exodus 24:18)
Numbers 14:33-34
33
Your children shall be wanderers in the wilderness forty years, and shall bear your prostitution, until your dead bodies be consumed in the wilderness.
34
After the number of the days in which you spied out the land, even forty days, for every day a year, you will bear your iniquities, even forty years, and you will know my alienation.'
