When the Second Seal is broken, a seraph calls out a red horse whose rider is given a great sword. The red
horse rider is tasked with taking away the peace of the world so that men would slay each other.
This is not the first mention of colored horses and their riders.
In Zechariah's first vision (Zech 1:7-11), an angel on
a red horse patrolled the earth and noted that the earth was quiet and peaceful.
In Zechariah's eighth vision (Zech 6:1-8), he sees four
chariots, which are the four spirits of heaven. These four chariots / spirits of heaven are angels
(2 Ki 6:15-17; Ps 68:17;
Isa 66:15). Going forth between standing before God and patrolling the
earth, the first chariot, being pulled by red horses, appears to be patrolling the earth although little is said
about the red horsed chariot.
Without much detail, it is difficult to understand Zechariah' prophecies; however, one can gain a better understanding of
the colored horses and their riders who emerge with the breaking of the first four seals, and they all work in concert.