There is a story about the eagle that you may have heard: The story says that when an eagle reaches about age 30 his beak and talons begin to weaken. It is at that point that he can give up and die. But she can also decide to do what ever it takes to get rid of the old beak and talons. Over a period of a few months the old eagle will become very weak but not give up. He will eat only what other eagles bring him. but he will begin to grow a new beak and new claws. If she survives that time of change, she can live another 30 years.
I have tried to check on the truth of this story. Some say it is true but most say it is only an urban legend and not true. .But to me it doesn't matter. I will not claim something to be true just to make a point but a great point is made even if this can serve only as a parable. Jesus gave is plenty of truth in the fictional stories He told!
There comes a point in our lives where we begin to wear out. We are tempted to just give up--live out our days doing nothing to contribute to the world and wait to die. Or we can take up a cross and follow Jesus. We can get rid of all the old stuff in our lives and allow the life of God to grow in us. When that happens we may not live any longer but we will live better. Don't ever think you are too old to count for God. you are never too old!