Numbers 14:28-29

28Tell them this: “I, the Lord, have heard your words. I promise you, as surely as I live, I will certainly do to you as you have said.

29Your dead bodies will fall to the ground in this desert. All the men that Moses counted will die. Those were the men who were 20 years old or older when he counted them. They complained against me and now they will die in this desert.