Beyond the four living creatures and the elders of Revelation 5:8 and the innumerable angels of Revelation 5:11, heaven also counts among its inhabitants the host of believers who have died in the Lord over the centuries since the fall into sin. These redeemed people now join in the heavenly praise also.
13 And I heard every creature in heaven and on earth and under the earth and in the sea, and all that is in them, saying, “To him who sits on the throne and to the Lamb be blessing and honor and glory and might forever and ever!”