The reason some Christians don’t feel the Lord’s peace and joy is that they are still living in their old worldly ways.
It seems that in a world of prosperity and abundance, there would be great contentment, yet the opposite is true. Why are so many people unhappy, anxious, and unsettled?
The main reason is that most of the world doesn’t know Jesus Christ as Savior and Lord, so they can’t have His peace and joy. But there are also Christians who are discontent because they’re wearing old “clothes” from their past. These garments might be emotions and attitudes left over from childhood, or it may be that these believers are trying to hold on to behaviors from their life before Christ.
The solution is to change into the new clothes that Jesus secured for us (Isa. 61:10). We are to lay aside old habits and thought patterns the way we would a filthy garment. This means we’re no longer to remind ourselves about the wrongs done to us by others. Nor are we to cherish sinful habits, continue worldly practices, or think the way we formerly did.
As new creations in Christ, we have no business wearing the dirty clothes of the flesh. Instead, we are to exercise our renewed mind and put on the new garments given to us by God. We will be satisfied only when we let go of the old and put on the new.