Revelation #20

And I looked, and, lo, a Lamb stood on mount Zion, and with him a hundred and forty-four thousand, having his Father’s name written in their foreheads. And I heard a voice from heaven, as the voice of many waters, and as the voice of a great thunder: and I heard the voice of harpers harping with their harps: 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-four thousand, who were redeemed from the earth.Revelation 14:1–3