forty days

Numbers 14:33, 34
Your children will be shepherds in the wilderness for forty years, and they will suffer for your unfaithfulness until the last of your bodies lie scattered in the wilderness. . . .

Exodus 24:18
Moses entered the cloud as he went up on the mountain, and he remained on the mountain forty days and forty nights.

Exodus 34:28
So Moses was there with the LORD forty days and forty nights without eating bread or drinking water. He wrote on the tablets the words of the covenant--the Ten Commandments.