Your life is a Book; it may be a volume of larger or smaller size; and conversion is but the title-page or the preface. The Book itself remains to be written; and your years and weeks and days are its chapters and leaves and lines. It is a Book written for eternity; see that it be written well. It is a Book for the inspection of enemies as well as friends; be careful of every word. It is a Book written under the eye of God; let it be done reverently; without levity, yet without constraint or terror.
Think about it for a minute… calling God as his witness. The ultimate Witness from whom nothing is hidden, before whom the hearts of men are laid open. The Witness who sees all, including Paul’s own heart.