And when he had opened the fifth seal, I saw under the altar the souls of them that were slain for the word of God, and for the testimony which they held: and they cried with a loud voice, saying, How long, O Lord, holy and true, dost thou not judge and avenge our blood on them that dwell on the earth? And white robes were given unto every one of them; and it was said unto them, that they should rest yet for a little season, until their fellowservants also and their brethren, that should be killed as they were, should be fulfilled.
This sobering song about martyrdom draws its sobering chorus from this passage.
Victory Through Grace (Revelation 6:2) (1890) Fanny Crosby (under the pseudonym Sallie Martin), John Sweney Lyrics | Sheet Music
The Faithful (Revelation 6:9-11) (1998) Michael Card, Phil Naish | Popularized by Steve Green Lyrics | YouTube | Amazon
That day of wrath, that dreadful day (Revelation 6:14-17) (13th century) Walter Scott, Thomas of Celano Lyrics | Sheet Music