This life offers only a window of time to work for the Lord. Youth and old age both offer their own hindrances to service. In many ways, though not entirely, youth should be spent in learning, middle age in doing, and old age in teaching. Many of the greatest servants of the Lord found in scripture began their journey in youth by learning of the Lord and His ways (1 Kings 18:12; Psalm 71:5; 2 Chronicles 34:3; Job 29:4; Ecclesiastes 12:1). As they approached the prime of life, they put their learning to use by serving the Lord (Numbers 8:24-25). As they passed their prime, they would pass their knowledge on to the next generation in hopes the work of God would go on (2 Timothy 4:1-8).
Alone, Moses climbed the rugged path to the top of Mount Pisgah in the land of Moab. Though preserved in body and mind, his 120 years (40 of them in the wilderness) made him worn in years and in battles. His last battle was his attempt to enter the Promised Land. He lost. He was to die after seeing the land from the mountain top.
