Revelation 14:1-3

MKJV(i) 1 And I looked, and lo, the Lamb stood on Mount Zion. And with Him were a hundred and forty-four thousands, having His Father's name written in their foreheads. 2 And I heard a voice from Heaven, like the voice of many waters and like the voice of a great thunder. And I heard the voice of harpers harping with their harps. 3 And they sang as it were a new song before the throne and before the four living creatures and the elders. And no one could learn that song except the hundred and forty-four thousands who were redeemed from the earth.