God's Spirit imparts wisdom and understanding. It teaches His way of life, comforts, and helps us. Even when we cannot express ourselves in our prayers, the Spirit aids us in making our requests before God.
Self-control is the manifestation of God's work in man through the Holy Spirit. Paul elaborated in His teaching on self-control that Christian self-control results from the Holy Spirit's indwelling (Romans 8:1-4). It is the Spirit-controlled mind that is strengthened with power (Ephesians 3:16; 5:18) to control rebellious desires and to resist the allurements of tempting pleasures.