Rev. 7:1-12 (ESV)
After this I saw four angels standing at the four corners of the earth, holding back the four winds of the earth, that no wind might blow on earth or sea or against any tree.  Then I saw another angel ascending from the rising of the sun, with the seal of the living God, and he called with a loud voice to the four angels who had been given power to harm earth and sea,  saying, "Do not harm the earth or the sea or the trees, until we have sealed the servants of our God on their foreheads."  And I heard the number of the sealed, 144,000, sealed from every tribe of the sons of Israel:
 12,000 from the tribe of Judah were sealed,
12,000 from the tribe of Reuben,
12,000 from the tribe of Gad,
 12,000 from the tribe of Asher,
12,000 from the tribe of Naphtali,
12,000 from the tribe of Manasseh,
 12,000 from the tribe of Simeon,
12,000 from the tribe of Levi,
12,000 from the tribe of Issachar,
 12,000 from the tribe of Zebulun,
12,000 from the tribe of Joseph,
12,000 from the tribe of Benjamin were sealed.
 After this I looked, and behold, a great multitude that no one could number, from every nation, from all tribes and peoples and languages, standing before the throne and before the Lamb, clothed in white robes, with palm branches in their hands,  and crying out with a loud voice, "Salvation belongs to our God who sits on the throne, and to the Lamb!"  And all the angels were standing around the throne and around the elders and the four living creatures, and they fell on their faces before the throne and worshiped God,  saying, "Amen! Blessing and glory and wisdom and thanksgiving and honor and power and might be to our God forever and ever! Amen."
A Bit of a long passage, but I think it needs to be read together lest we become JWS. It boggles my mind the people who read this and think that only 144,000 will go to heaven. Completely mind boggling. Or those hear who don’t then finally see the figurative nature of the language in Revelation. Notice how 144,000 becomes a great multitude that no one could number?
God’s grace is overabundant. He grants salvation so freely, that even thought the gate is narrow, as many as the sands of the sea are led through it. God makes good on his promise to Abraham.