And they sung as it were a new song before the throne, and before the four beasts, and the elders: and no man could learn that song but the hundred and forty and four thousand, which were redeemed from the earth.
"Before the throne, and before the four beasts, and the elders" is the same scene (FROM HEAVEN) that's detailed in Revelation 4 and 5. Furthermore, "no man could learn that song...