Bible Verses About Redemption: Alone can learn the songs of heaven

They were singing a new song before the throne and before the four living beings and the elders, and no one could learn the song except the 144,000 who have been ransomed from the world.

These are the ones who have not defiled themselves with women, for they are virgins; they follow the Lamb wherever he goes; they have been ransomed from among humanity as firstfruits for God and the Lamb;