The people sang a new song before the throne and before the four living beings and the elders. The only ones who could learn the new song were the 144,000 who had been bought from the earth. No one else could learn it.
And they all sang a new song to the Lamb: “You are worthy to take the scroll and to open its seals, because you were killed, and with your blood sacrifice you bought people for God from every tribe, language, race of people, and nation.