They refer to their own and everything else’s existence: God “created all things.” They had spent a lifetime on earth and now were for a period in heaven already. Earth and heaven had once been called into existence by the word of God, and both had continued to exist by the power of this God. By saying as much, these elders separated Creator from creature so that the Creator is different, holy, in a category of his own, and therefore worthy of praise from every creature in heaven and on earth.
11 “Worthy are you, our Lord and God, to receive glory and honor and power, for you created all things, and by your will they existed and were created.”