Book of Revelaiton 14:5

And in their mouth was found no deceit,
for they are without fault before the throne of God.

Book of Revelation 14:4

These are the ones who were not defiled with women, for they are virgins.  These are the ones who follow the Lamb wherever He goes.  These were redeemed from among men, being firstfruits to God and to the Lamb.

Book of Revelation 14:3

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 (144,000) who were redeemed from the earth.

Book of Revelation 14:2

And I heard a voice from heaven,
like the voice of many waters,
and like the voice of loud thunder.
And I heard the sound of harpists playing their harps.

Book of Revelation 14:1

Then I looked,
and behold,
a Lamb standing on Mount Zion,
and with Him one hundred and forty-four thousand (144,000),
having His Father's name written on their foreheads.

Book of Revelation 13:18

Here is wisdom.
Let him who has understanding calculate the number of the beast, for it is the number of a man:
His number is 666.

Book of Revelation 13:17

and that no one may buy or sell except one who has the mark or the name of the beast, or the number of his name.