Revelation 4

10 The four and twenty elders fall down before him that sat on the throne, and worship him that liveth for ever and ever, and cast their crowns before the throne, saying,

11 Thou art worthy, O LORD, to receive glory and honour and power:

for thou hast created all things,

and for thy pleasure they are and were created.

Jesus the Lamb - doesn't appear until the Next chapter.

..........

Revelation 21 John tells us exactly who "God Almighty" is.

Revelation 21:22 - And I saw no temple therein:

for the Lord God Almighty

and the Lamb
are the temple of it.