And now, behold, the Lord hath kept me alive, as he said, these forty and five years, even since the Lord spake this word unto Moses, while the children of Israel wandered in the wilderness: and now, lo, I am this day fourscore and five years old. (Joshua 14:10)
In the ordinary course of events Caleb would likely have died before this. All his contemporaries in age, except Joshua, had passed from the scene of action years before. Caleb knew that his long life was the result of his obedience. He had fully followed the Lord. His life was a demonstration of faith, for in all things he accepted the program of God instead of his own. God can do great things for those who are wholly surrendered to Him. But those who follow only so much of the divine program as suits them, and neglect those items displeasing to them, cannot expect the blessing of Heaven.