Revelation 5:2 KJV
And I saw a strong angel proclaiming with a loud voice, Who is worthy to open the book, and to loose the seals thereof?
Revelation 5:2, King James Version
In context
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.