"Victory" is from the same Greek root as the word translated "overcomes" so many times in Revelation 2 and 3. Overcoming is being victorious over the pull of human nature against God in the self, Satan, and this world that tries to keep us from entering God's Kingdom.
Paul also exhorts us to be "always abounding in the work of the Lord." His work is creating. Then, by using the words "your labor," the apostle draws our attention to our responsibilities. Our labor is whatever energies and sacrifices it takes to yield to the Lord so He can do His work. Scripture refers to God several times as the Potter, and we are the clay He is shaping. The difference between us and earthy clay is that the clay God is working is alive—having a mind and will of its own, it can choose to resist or yield.
Following initial repentance, finding the motivation to use our faith to yield to Him in labor, not just agreeing mentally, is perhaps most important of all. Real living faith motivates conduct in agreement with God's purpose. Clearly, God's purpose is that we grow or change to become as much like Him in this life as time allows.
John W. Ritenbaugh
The Elements of Motivation (Part Three): Hope
Is it still possible for us to sin and experience sin's sting? As long as the laws that define sin exist, the possibility of death remains because it is possible for us to break those laws. This is why verse 58 urges us so strongly to be steadfast and immovable in the work of the Lord. His work in us as individuals is to refine our character so that we never sin. We are in training to be in God's image, and God does not sin.
The term “sting” illustrates what is painful about sin. The most painful element involved in sin is death, and with death, all hope is lost. Sin kills. Do we believe that? Sin is the cause of death. The function of the laws of God is to provide knowledge of sin. God's laws give us knowledge of what to do and what not to do. Sin is still to be feared!
We must be careful, though, because our carnal nature is so deceitful that by giving us knowledge of what not to do, sin can actually play a role in arousing us to desire a taste of it, to experience its excitement. And so we can give in to sin. We must fight this desire with all our being. After God commanded her not to eat of the tree in the midst of the Garden of Eden, Eve failed to fight the intriguing desire, and she ended up sinning! God's laws have never been against us; He designed them for our good. They continue to give us guidance about what is right.
Our sins imposed the death penalty on us—and ultimately on our Savior—in the first place and still do if we continue sinning after He pays the debt. God's laws have not changed, and the penalty for breaking them remains the same despite Jesus' merciful payment on our behalf. Irrespective of the New Covenant, the laws continue to define sin. If we continue sinning, His death for our benefit is absolutely wasted. Specifically, at our baptism, His death pays only for sins committed in the past.
Christ's death is the means, the way, that opens the door for completing the perfection of our character into His image in preparation for the Kingdom of God. The Holy Spirit God gives us through the laying on of hands is the means of keeping His laws far more perfectly than before our calling. Sins committed after accepting His shed blood can put one on the road to the Lake of Fire because His death did not remove our obligation to obey the law. We must repent of sins committed following baptism so they do not produce more severe consequences.
God's laws still exist and are still in force, guiding us in living God's way.
John W. Ritenbaugh
Why Hebrews Was Written (Part One)
Other Forerunner Commentary entries containing 1 Corinthians 15:57:
1 Corinthians 15:42-49