It is just as natural and easy for a Christian to live the Christian life as it is for a sinner to live a sinful life. The sinner needs make no effort to live a sinful life; he lives it naturally and easily. Life proceeds from the heart. The heart is the fountain, and the life is the stream. As the fountain is, so the stream will be. It is not difficult to live a Christian life when our hearts are pure. This is the secret of purity of life.

The important question, then, is, "How can I have a pure heart?" Hearts are made pure by the blood of Jesus. Then comes the command, "Keep thyself pure." That the heart may be kept pure, it must be kept filled with that which is pure. To keep darkness out of a room, we need only to keep it filled with light. Carefully closing up every crevice will not suffice if the light goes out. Darkness will be present. But simply keep the room filled with light, and no effort is required to keep darkness out. In like manner no effort need be made to keep impurity out of the heart and keep the heart filled with that which is pure.

But what is pure? "The word of God is pure, as silver tried in a furnace of fire, purified seven times." "Thy word is very pure; therefore thy servant loveth it." "Let the word of Christ dwell in you............