Revelation 7:3-5

American Standard Version

³saying, Hurt not the earth, neither the sea, nor the trees, till we shall have sealed the ^[a]servants of our God on their foreheads. ⁴And I heard the number of them that were sealed, a hundred and forty and four thousand, sealed out of every tribe of the children of Israel:

⁵Of the tribe of Judah were sealed twelve thousand;
Of the tribe of Reuben twelve thousand;
Of the tribe of Gad twelve thousand;