Revelation 14:1-5

And I saw, and behold, the Lamb was standing above mount Zion, and with him were one hundred and forty-four thousand, having his name and the name of his Father written on their foreheads. And I heard a voice from heaven, like the voice of many waters, and like the voice of a great thunder. And the voice that I heard was like that of singers, while playing on their stringed instruments. And they were singing what seemed like a new canticle before the throne and before the four living creatures and the elders. And no one was able to recite the canticle, except those one hundred and forty-four thousand, who were redeemed from the earth. These are the ones who were not defiled with women, for they are Virgins. These follow the Lamb wherever he will go. These were redeemed from men as the first-fruits for God and for the Lamb. And in their mouth, no lie was found, for they are without flaw before the throne of God.