Revelation 7:1-9 (HCSB)
1 After this I saw four angels standing at the four corners of the earth, restraining the four winds of the earth so that no wind could blow on the earth or on the sea or on any tree.
2 Then I saw another angel, who had the seal of the living God rise up from the east. He cried out in a loud voice to the four angels who were empowered to harm the earth and the sea:
3 “Don’t harm the earth or the sea or the trees until we seal the slaves of our God on their foreheads.”
4 And I heard the number of those who were sealed: 144,000 sealed from every tribe of the Israelites:
5 12,000 sealed from the tribe of Judah, 12,000 from the tribe of Reuben, 12,000 from the tribe of Gad,
6 12,000 from the tribe of Asher, 12,000 from the tribe of Naphtali, 12,000 from the tribe of Manasseh,
7 12,000 from the tribe of Simeon, 12,000 from the tribe of Levi, 12,000 from the tribe of Issachar,
8 12,000 from the tribe of Zebulun, 12,000 from the tribe of Joseph, 12,000 sealed from the tribe of Benjamin.
9 After this I looked, and there was a vast multitude from every nation, tribe, people, and language, which no one could number, standing before the throne and before the Lamb. They were robed in white with palm branches in their hands.
Revelation 14:1-5 (HCSB)
1 Then I looked, and there on Mount Zion stood the Lamb, and with Him were 144,000 who had His name and His Father’s name written on their foreheads.
2 I heard a sound from heaven like the sound of cascading waters and like the rumbling of loud thunder. The sound I heard was also like harpists playing on their harps.
3 They sang a new song before the throne and before the four living creatures and the elders, but no one could learn the song except the 144,000 who had been redeemed from the earth.
4 These are the ones not defiled with women, for they have kept their virginity. These are the ones who follow the Lamb wherever He goes. They were redeemed from the human race as the firstfruits for God and the Lamb.
5 No lie was found in their mouths; they are blameless.