Revelation 5:6

5:6 Then I saw standing in the middle of the throne and of the four living creatures, and in the middle of the elders, a Lamb that appeared to have been killed. He had seven horns and seven eyes, which are the seven spirits of God sent out into all the earth.

Revelation 5:13

5:13 Then I heard every creature – in heaven, on earth, under the earth, in the sea, and all that is in them – singing:

“To the one seated on the throne and to the Lamb

be praise, honor, glory, and ruling power forever and ever!”

Revelation 7:9

7:9 After these things I looked, and here was an enormous crowd that no one could count, made up of persons from every nation, tribe, people, and language, standing before the throne and before the Lamb dressed in long white robes, and with palm branches in their hands.