Hisgalus 5:1-2

Orthodox Jewish Bible

5 And I saw on the yad yamin (right hand) of the One sitting on the Kes (Throne) a sefer (book) having been written inside and on the back, having been sealed with sheva chotamot (seven seals). [YECHEZKEL 2:9,10; YESHAYAH 29:11; DANIEL 12:4]

² And I saw a strong malach (angel), proclaiming in a kol gadol (loud voice), Who is worthy to open the sefer (book) and break its chotamot (seals)?