4:9 And when the living creatures give glory and honor and thanks to Him who sits on the throne, to Him who lives forever and ever,

And when the LIVING CREATURES give GLORY

This is a switch -- we come short of the glory of God, Romans 3:23; certainly present suffering pales compared to future glory, Romans 8:18-22; we are being transformed, 2 Corinthians 3:17-18; and Christ will be glorified in us in that day, a glory of His power, 2 Thessalonians 1:9.

and HONOR

Part of the awesomeness of God demands HONOR, 1 Timothy 6:13-16. We must HONOR both the Son and the Father, John 5:22-23.

and THANKS

Consider that these living creatures have never "fallen from grace", so what are they THANKing Him for. Since it is not for redemption, it must be for the privilege to serve Him.