How do you know when you have overcome a problem? It's when the problem no longer has any hold over you. The sign of victory over a problem is that the problem doesn't limit you in any way anymore.
What is the sign that a person has overcome the problem of sin and death? Resurrection. When a person resurrects from the grave, never to die again, it shows that death and the problem that caused it - sin - no longer have any hold over that person. As Paul says in verse 54: "When the perishable has been clothed with the imperishable, and the mortal with immortality, then the saying that is written will come true: 'Death has been swallowed up in victory'" (v54). Resurrection is our ultimate victory over sin and death.
Resurrection is not something we can achieve by ourselves. As Paul writes in verse 50, "flesh and blood cannot inherit the kingdom of God, nor does the perishable inherit the imperishable" (v50). In other words, on our own, we have no right, power or ability by ourselves to resurrect from the dead. In order for our perishable bodies to resurrect, somehow "the perishable must clothe itself with the imperishable, and the mortal with immortality" (v53).
Praise God! When we place our trust in Jesus Christ who conquered sin and death on our behalf, we the perishable are clothed with Jesus Christ the imperishable. It is God's power at work in us through Jesus Christ that makes our resurrection possible.
As Paul says in verse 57, "But thanks be to God! He gives us the victory through our Lord Jesus Christ."
Because of Jesus, death and sin no longer have any hold over us. Instead we can say, "Where O death is your victory? Where O death is your sting?" (v55). And since we have this hope of resurrection, may we stand firm, let no smaller problem get the best of us, and serve the Lord with all that we have, knowing that our labor in Him is not in vain (v58).
Thank You, God, for sending Your Son Jesus Christ, the imperishable one, to clothe us in His resurrection power. In the mighty, imperishable name of Jesus we pray, Amen!