The Israelites left Egypt for what should have been an eleven-day trek across the desert to the “promised land.” However, because of their disobedience, God gave them a 40-year timeout in the desert.
This, however, may not have been the first delay. Prior to that, Moses sensed that his place was to rescue his people, but when initial opposition occurred to his leadership, he high-tailed it out of there, only to spend 40 years hiding in the desert. Imagine that. Moses spent a total of 80 years of his life in the desert.
Now Moses’ initial 40-year desert retreat could have been a needed time of preparation, but I think not. God could have worked through him at any time — then or later. I think Moses shirked his initial call. He needed 40 years of alone time, tending to his sheep, before he would be ready to hear God and obey.
So, had Moses not procrastinated for 40 years and had the people of Israel not been disobedient, earning another 40-year delay, they could have arrived in the land God promised them 80 years sooner.