Revelation 5:9-10

9And they sang a new song [of glorious redemption], saying, “Worthy and deserving are You to take the scroll and to break its seals; for You were slain (sacrificed), and with Your blood You purchased people for God from every tribe and language and people and nation.

10You have made them to be a kingdom [of royal subjects] and priests to our God; and they will reign on the earth.”