As our bodies get weaker, God continually makes our inner lives stronger. He will reward us for all that we have suffered.

2 Corinthians 4:16-18

16 So, because we know that as a result of our suffering many people will honor God, we (exc) never get so discouraged that we stop teaching his message. Although our bodies are getting weaker, God encourages us every day and strengthens us spiritually. 17 I know that all these troubles that happen to us in this life are not significant and will not last forever. When we think of the glorious things that God is preparing for us to enjoy forever in heaven, all our suffering now is not important. 18 That is why we say, “We will not continue thinking about all the suffering that we are experiencing now. Even though we cannot see all the things that God has prepared for us in heaven, those are what we should be thinking about.” That is how we should think, because all these troubles that we(exc) have now will last only a short time. But what we will have in heaven, what we cannot see now, will last forever.