God's ideal for His children is higher than the highest human thought can reach. "Be ye therefore perfect, even as your Father which is in heaven is perfect." This command is a promise. The plan of redemption contemplates our complete recovery from the power of Satan. Christ always separates the contrite soul from sin. He came to destroy the works of the devil, and He has made provision that the Holy Spirit shall be imparted to every repentant soul, to keep him from sinning. {DA 311.2}

All true obedience comes from the heart. It was heart work with Christ. And if we consent, He will so identify Himself with our thoughts and aims, so blend our hearts and minds into conformity to His will, that when obeying Him we shall be but carrying out our own impulses. The will, refined and sanctified, will find its highest delight in doing His service. When we know God as it is our privilege to know Him, our life will be a life of continual obedience. Through an appreciation of the character of Christ, through communion with God, sin will become hateful to us. {DA 668.3}

When the soul surrenders itself to Christ, a new power takes possession of the new heart. A change is wrought which man can never accomplish for himself. It is a supernatural work, bringing a supernatural element into human nature. The soul that is yielded to Christ becomes His own fortress, which He holds in a revolted world, and He intends that no authority shall be known in it but His own. A soul thus kept in possession by the heavenly agencies is impregnable to the assaults of Satan. But unless we do yield ourselves to the control of Christ, we shall be dominated by the wicked one. We must inevitably be under the control of the one or the other of the two great powers that are contending for the supremacy of the world. It is not necessary for us deliberately to choose the service of the kingdom of darkness in order to come under its dominion. We have only to neglect to ally ourselves with the kingdom of light. If we do not co-operate with the heavenly agencies, Satan will take possession of the heart, and will make it his abiding place. The only defense against evil is the indwelling of Christ in the heart through faith in His righteousness. Unless we become vitally connected with God, we can never resist the unhallowed effects of self-love, self-indulgence, and temptation to sin. We may leave off many bad habits, for the time we may part company with Satan; but without a vital connection with God, through the surrender of ourselves to Him moment by moment, we shall be overcome. Without a personal acquaintance with Christ, and a continual communion, we are at the mercy of the enemy, and shall do his bidding in the end. {DA 324.1}