Revelation 14:2-3

Douay-Rheims 1899 American Edition

² And I heard a voice from heaven, as the noise of many waters, and as the voice of great thunder; and the voice which I heard, was as the voice of harpers, harping on their harps.

³ And they sung as it were a new canticle, before the throne, and before the four living creatures, and the ancients; and no man could say the canticle, but those hundred forty-four thousand, who were purchased from the earth.