5:9 And they (the 28) sang a new song, saying:
“You are worthy to take the scroll
and to open its seals,
because you were slain,
and with your blood you purchased for God
persons from every tribe and language and people and nation.
And they (the 28) sang a NEW SONG saying:
“You are worthy to take the scroll
and to open its seals,
Remember that the inheritance scroll could only be opened by the owner when payment/redemption was made.
Let's personalize this:
WHAT was bought? you and me (men)
HOW was this price paid? with Jesus Christ's Blood
WHO received it? God, Jesus Christ's Father
This new song clearly results in OUR redemption!