Exodus 40: Beyond the Wildest Dream

Then Moses set up the courtyard around the tabernacle and altar and put up the curtain at the entrance to the courtyard. And so Moses finished the work. 
Then the cloud covered the Tent of Meeting, and the glory of the LORD filled the tabernacle. 
Moses could not enter the Tent of Meeting because the cloud had settled upon it, and the glory of the LORD filled the tabernacle. - Exodus 40:33-35 NIV

Did Moses ever dream that the latter part of his life would be so full, that he would be leading a people, however rebellious, out of bondage into a land promised by God to his forefather, Abraham?  Did he ever imagine that he would be in the presence of the creator of heaven and earth, that he would see his glory?  How could God use someone like Moses with such a checkered past, a murderer and then after he fled to Midian, a sheepherder for his father-in-law?  Did he think that was how his life was going to be for the rest of his life?  Did he think that all of his good years were in the past? 

God doesn't always use just the young and energetic.  Sometimes he even chooses those who are way past their prime, such as Abraham. God will use anyone, at any stage in their life, as long as they are listening to the voice of God, as long as they are willing to follow even when his requests seem somewhat implausible. He's looking for those with open eyes and ears and willing hearts.  He's looking for those with faith.

By faith Moses’ parents hid him for three months after he was born, because they saw he was no ordinary child, and they were not afraid of the king’s edict.
By faith Moses, when he had grown up, refused to be known as the son of Pharaoh’s daughter.  He chose to be mistreated along with the people of God rather than to enjoy the fleeting pleasures of sin. He regarded disgrace for the sake of Christ as of greater value than the treasures of Egypt, because he was looking ahead to his reward..  By faith he left Egypt, not fearing the king’s anger; he persevered because he saw him who is invisible. By faith he kept the Passover and the application of blood, so that the destroyer of the firstborn would not touch the firstborn of Israel.
By faith the people passed through the Red Sea as on dry land; but when the Egyptians tried to do so, they were drowned. - Hebrews 11:23-29 NIV