Moses had two reasons to be disappointed. First, he was disappointed in people because his expectations that his people would understand what he wanted to do for them and would accept him were not fulfilled.
Second, he was disappointed in his circumstances. After years of privilege and education in Egypt, he never dreamed that he would spend the rest of his life tending sheep in the desert.
Today, we become disappointed for the same two reasons. When we set our hearts on people or on circumstances, we are usually disappointed. God wants us to set our hearts only on Him. He wants us to trust in His goodness, even in the midst of our deepest disappointments.
Here is a website to go to for more information:
https://bible.org/seriespage/lesson-14-dealing-disappointment
Here is a little piece but please go to the web site for deeper in sight.
Satan has a strategy to invade our spirits and bring us down until we are defeated. The tip of the wedge seems so harmless. It is simply disappointment.
But if we let our disappointment fester, the wedge is driven in a little farther, and we experience discouragement.
Unchecked, discouragement because disillusionment.
Then the wedge invades even more territory as it proceeds to depression.
Ultimately, we end in defeat.
How do we prevent the penetration of this deadly wedge into our spirits? We find the answer in 1 Thessalonians 5:18: "Give thanks in all circumstances."
Thanksgiving—the Antidote to Disappointment