Revelation 5 consists of three parts, each introduced by Then I saw.
Revelation 5:1–5 – The One who sits on the throne is holding the scroll.
Revelation 5:6–10 – The Lamb is presented as standing at the centre of the throne, worthy to open the scroll.
Revelation 5:11–14 – The glorification of the Lamb and the One who sits on the throne.
1 Then I saw in the right hand of him who was seated on the throne a scroll written within and on the back, sealed with seven seals.