D&C 4:1-2

Now behold, a marvelous work is about to come forth among the children of men. Therefore, O ye that embark in the service of God, see that ye serve him with all your heart, might, mind, and strength, that ye may stand blameless before God at the last day. D&C 4:1-2

A marvelous work and a wonder has come forth in these latter-days: the Church of Jesus Christ has been restored with all power and authority, keys and blessings essential for our eternal salvation. The Book of Mormon has been brought forth, containing the fulness of the everlasting gospel. This record of ancient inhabitants of the Americas was written to bring God’s children to Christ. But the marvelous work is not finished. It continues unabated as members and missionaries spread the gospel message to the far corners of the earth, as people repent of old ways and traditions, put off the natural man, and become new creatures in a covenant relationship with Christ (Mosiah 3:19; 27:26). To move this marvelous work forward, the Lord needs us to earnestly dedicate ourselves to his work, with all our love and affections, our valor and willpower, our intelligence and reason and physical strength. If we do so, we may stand blameless before God at the last day. (Robert L. Millet and Lloyd D. Newell. Draw Near Unto Me: Daily Reflections on the Doctrine and Covenants. 15)