"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
Other Forerunner Commentary entries containing 1 Corinthians 15:57:
1 Corinthians 15:42-49