And there went out another horse that was red: and power was given to him that sat thereon to take peace from the earth, and that they should kill one another: and there was given unto him a great sword.
All Commentaries on Revelation 6:4 Go To Revelation 6
Bede
AD 735
red: Against the Church victorious and conquering there went out a red horse, that is, a malignant people, bloody from its rider, the devil. Yet we have read in Zechariah of the red horse of the Lord. But the former one is red with his own blood, this with the blood of others.