What does Revelation 5 teach about all believers and their reign with Christ?

Les teaches that Revelation 5 includes all believers, or us: He has made us kings and priests, and we shall reign on the earth with Christ. This fits with Revelation 20:6, where the first resurrection includes all believers from Adam through the end of the tribulation; they shall be priests of God and of Christ and reign with Him a thousand years. Although Revelation 20:4 sounds like only tribulation people rule and reign, Scripture must be compared with Scripture. Revelation 19 shows the marriage of the Lamb, the wife arrayed in fine linen, the righteousness of the saints, and the armies in heaven following Him on white horses, clothed in fine linen, white and clean. Les explains that these armies are not a military assortment but a congregation, likely the church age saints. So not only the tribulation saints are included in ruling and reigning with Christ for a thousand years, but we are.