During Moses’ first forty years he dealt with his share of disappointments. He thought he was something. At the end of his second forty years he discovered that he was nothing. During his last forty years Moses learned that God was everything.
Life’s disappointments are truly God’s appointments. With God, there’s a way out of our disappointments.
Lamentations 3:21-24 This I recall to my mind, therefore have I hope. It is of the Lord's mercies that we are not consumed, because his compassions fail not. They are new every morning: great is thy faithfulness. The Lord is my portion, saith my soul; therefore will I hope in him.