scripture
"These are the ones coming out of the great tribulation. They have washed their robes and made them white in the blood of the Lamb."
Source
Revelation — The Great Tribulation
Revelation 7:14 (ESV)
Author
John of Patmos
Date
c. 95 CE
Credibility & evidentiary value
Apocalyptic vision written to persecuted churches. Richly symbolic; its imagery is read literally, symbolically, or historically depending on interpretive school.
Citation · Chicago
Revelation 7:9–17 (ESV). The English Standard Version (Wheaton: Crossway, 2001).