Numbers 14:32-35

But as for you, your corpses will fall in this wilderness. Your sons shall be shepherds for forty years in the wilderness, and they will suffer for your unfaithfulness, until your corpses lie in the wilderness. According to the number of days which you spied out the land, forty days, for every day you shall bear your guilt a year, even forty years, and you will know My opposition. I, the LORD, have spoken, surely this I will do to all this evil congregation who are gathered together against Me. In this wilderness they shall be destroyed, and there they will die.’ ”