Christ, the Lion and the Lamb, Praised with a New Song.
The book sealed with seven seals:
Related Commentaries of Revelation 5:1
Revelation 5:1-4
1 And I saw in the right hand of him that sat on the throne a book written within and on the backside, sealed with seven seals.
2 And I saw a strong angel proclaiming with a loud voice, Who is worthy to open the book, and to loose the seals thereof?
3 And no man in heaven, nor in earth, neither under the earth, was able to open the book, neither to look thereon.
4 And I wept much, because no man was found worthy to open and to read the book, neither to look thereon.