Commentaries:
Adam Clarke
They sung - a new song - See on Revelation 5:9 (note).
No man could learn that song - As none but genuine Christians can worship God acceptably, because they approach him through the only Mediator, so none can understand the deep things of God but such; nor can others know the cause why true believers exult so much in God through Christ, because they know not the communion which such hold with the Father and the Son through the Holy Ghost.
DISCLAIMER: Church of the Great God (CGG) provides these resources to aid the individual in studying the Bible. However, it is up to the individual to "prove all things, and hold fast to that which is good" (I Thessalonians 5:21). The content of these resources does not necessarily reflect the views of CGG. They are provided for information purposes only.