Revelation 7:9-14

Rotherham(i) 9 After these things, I saw, and lo! a great multitude,––which, to number it! no one was able,––of every nation, and [of all] tribes, and peoples, and tongues; standing before the throne, and before the Lamb; arrayed in white robes, and palm–branches in their hands; –– 10 and they cry out with a loud voice, saying––Salvation unto our God who sitteth upon the throne, and unto the Lamb! 11 And, all the messengers, were standing round about the throne and the elders and the four living creatures; and they fell down before the throne upon their faces, and rendered homage unto God, 12 saying––Amen! The blessing, and the glory, and the wisdom, and the thanksgiving, and the honour, and the power, and the might,––be unto our God, unto the ages of ages. [Amen]!
13 And one of the elders began, saying unto me––These who are arrayed in white robes, who are they? and whence came they? 14 And I at once said to him––My lord! thou, knowest! And he said unto me––These, are they who come out of the great tribulation, and they washed their robes, and made them white in the blood of the Lamb;