The Book of Revelation 12 - The Lamb and the 144,000

Revelation chapter 14 describes a vision in which the Lamb (Jesus Christ) is in Zion (the heavenly abode of God) along with 144,000 followers who bear his name and the name of his Father on their foreheads.
These 144,000 are described as those who have been redeemed from the land and are presented before Christ as firstfruits to God and the Lamb.