Or HaChaim on Numbers 14:28/אור החיים על במדבר י״ד:כ״ח

1 אמר אליהם…כאשר דברתם, "say to them…as you have spoken, etc." Here G'd relates to the fears the Israelites had expressed, sentiments which G'd had heard and decided to address. As a result, He limited the ages of the people who would die in the desert to those who were over the age of twenty. G'd never allowed the spies themselves to be informed of the decree He was about to hand down as they died a miserable death within the sight of all the Israelites.