Like physical fitness the core of your life should be strong; Both need to be worked on daily.
Galatians 5:25
Keep Christ at the core of your life.
But the fruit of the Spirit is love, joy, peace, forbearance, kindness,
goodness, faithfulness, gentleness and self-control.
Against such things there is no law.
Galatians 5:22-23
The acts of the flesh are obvious: sexual immorality, impurity and debauchery; idolatry and witchcraft; hatred, discord, jealousy, fits of rage, selfish ambition, dissensions, factions and envy; drunkenness, orgies, and the like. I warn you, as I did before, that those who live like this will not inherit the kingdom of God.
Galatians 5:19-2
So I say, walk by the Spirit, and you will not gratify the desires of the flesh.
Galatians 5:16