Those apart from Christ may have great storehouses of self-control. They may train harder, focus more intently on the task ahead, or manage their anger better than others. But apart from Christ and the presence and influence of the Holy Spirit they will not know true peace. Love will never be fully experienced. Joy will be momentary. Patience will have no God-factor. Gentleness will have nothing to do with faith.
Those who have the Holy Spirit, have Christ, and with him the truest expression of these gifts. Self-control helps us display that reality from a heart set free by the One who has ransomed our souls from the wanton abandonment of God's ways.