32:18 Paul knew that his warfare against evil would not end so long as life should last. Ever he realized the need of putting a strict guard upon himself, that earthly desires might not overcome spiritual zeal. With all his power he continued to strive against natural inclinations. Ever he kept before him the ideal to be attained, and this ideal he strove to reach by willing obedience to the law of God. His words, his practices, his passions--all were brought under the control of the Spirit of God.