9And they sang a new song, saying, “Worthy are you to take the scroll and to open its seals, for you were slain,and by your blood you ransomed people for God from every tribe and language and people and nation,
Given the setting of the judicial court in heaven, the scroll is probably dealing with judicial matters.
9 And they sang a new song, saying, “Worthy are you to take the scroll and to open its seals, for you were slain, and by your blood you ransomed people for God from every tribe and language and people and nation,