Thematic Bible: The book with seven seals

And I saw upon the right hand of the one sitting upon the throne a book having been written within and without, having been sealed with seven seals. And I saw a mighty angel crying with a great voice, Who is able to open the book, and to loose its seals? And no one in the heaven, nor upon the earth, nor beneath the earth, was able to open the book, and to look into it. read more.
And I was weeping much, because no one was found worthy to open the book, or to look into it. And one of the elders says to me; Weep not: behold, the Lion of the tribe of Judah, the Root of David, has conquered to open the book, and the seven seals.