This is a very important message for those who do not know God., page-286

"So, in your impulsive compulsive disorder response, the names on their foreheads are a new song that they could only learn?"

Pay attention -> a song AS IT WERE a new song = it appears like a new one, but it is not, it's just a lost one, it would seem? (message).
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They sang as it were a new song before the throne, before the four living creatures, and the elders; and no one could learn that song except the hundred and forty-four thousand who were redeemed from the earth.

The ones singing it, is not the 144,000