The ‘book’ with 7 seals is introduced from the throne room of God. It is actually in the form of a manuscript, rolled up into a scroll, and sealed with 7 seals (v.1). The ‘book’ must be constructed is such a way that seven scrolls are connected together, but each individually has a seal that must be broken to read it. The scrolls are written on both sides. In the following chapter (chapter 6) these seals are opened one after another, up to the sixth seal, each allowing a part of the book to be read. In chapter 7 the final seal is broken and the last book is opened.
Verse 2 opens with an angel asking “Who is worthy to open the book, and to loose the seals thereof?” To which it is replied ‘no one’ (v.3). In verses 3 and 4 the word ‘man’ appears in the KJV, but there is no word in Greek for ‘man.’ At the time of the translation ‘man’ had a generic meaning referring to ‘one’ as used today. In the traditional Greek text translation KJ3 the expression used for ‘no man’ is ‘no one’, as is found in many other translations. Thus it would seem to imply ‘no one regardless of who or where they are.’ St. John says he wept (v.4) because no one was found to open the book.