God has people on earth who are lifting up the downtrodden law, and presenting to the world the Lamb of God that taketh away the sins of the world.... who are at the present time standing in the breach and making up the hedge, building up the old waste places.
The book of Revelation focuses on two sets of God's people—the visible remnant (12:17) and “My people” in Babylon. As the end draws near and the work of giving the last warning to the world extends, it becomes more important for those who accept present truth to have a clear understanding of the nature and influence of the testimonies, which God in His providence has linked with the work of the third angel's message from its very rise.
The greatest wealth of truth ever entrusted to mortals, the depositaries of His law, is to be given to others in faithful warnings, reproofs, and encouragement.