And the children of Israel did eat manna forty years, until they came to a land inhabited; they did eat manna, until they came unto the borders of the land of Canaan. (16:35)

--Numbers--

After the number of the days in which ye searched the land, [even] forty days, each day for a year, shall ye bear your iniquities, [even] forty years, and ye shall know my breach of promise. (14:34)