Sāruq (שָׂרֻק) means red, sorrel, reddish-brown — used to describe the color of horses. From sāraq (to be red). Appears in Zechariah's visions.
Zechariah 1:8: 'I saw a man mounted on a red horse, standing among the myrtle trees... Behind him were red, brown and white horses.' These are the horses God sends to patrol the earth. Zechariah 6:2,6 also features colored horses pulling chariots — agents of God's sovereignty over the nations. The colored horses represent God's comprehensive surveillance and control over world affairs. Nothing escapes His notice; no nation acts beyond His reach. Revelation 6 echoes this with the four horsemen. The colors are not decorative — they signal different divine missions.