With his ascension and enthronement, Christ Jesus became sovereign over all creatures. So in Revelation 5:1–14 the four living creatures and the twenty-four elders fell down before the Lamb (Revelation 5:8, Revelation 5:14) and the myriad of angels in heaven and every creature in heaven and on earth and under the earth and in the sea
praised the Lamb (Revelation 5:13). The heavenly declaration in Revelation 11:15 repeats that acknowledgement of Jesus Christ as sovereign King over every creature, even those in heaven. And those in heaven are happy to submit to his lordship and readily obey (see also Matthew 6:10).
15 Then the seventh angel blew his trumpet, and there were loud voices in heaven, saying, “The kingdom of the world has become the kingdom of our Lord and of his Christ, and he shall reign forever and ever.”