Nahum 2:3

The shields of his warriors [are] dyed red; The powerful men [are] dressed in scarlet. The metal of the chariots [shines] like fire {on the day of battle}, and [their] spears quiver.

Ezekiel 23:14-15

And she increased her whorings, and she saw men carved on the wall, images of Chaldeans carved in red

Isaiah 14:8

Even [the] cypresses rejoice over you, the cedars of Lebanon: 'Since you were laid down, no [wood] cutter comes up against us.'

Isaiah 63:1-3

Who [is] this, coming from Edom, from Bozrah [in] bright red garments? [Who is] this honored in his garment, lying down in his great strength? "[It is] I, speaking in justice, {mighty} to save!"

Zechariah 1:8

{I had a vision in the night}, and look, a man riding on a red horse. And he [was] standing between the myrtle shrubs that [were] in the ravine, and behind him [were] red, reddish-brown, and white horses.

Zechariah 6:2

With the first chariot [there were] red horses, and with the second chariot [there were] black horses.

Zechariah 11:2

Wail, O juniper, for [the] cedar has fallen, for [the] magnificent [trees] are ruined! Wail, oaks of Bashan, for the impenetrable forest has come down!

Revelation 6:4

And another horse came out, fiery red, and it was granted to the one seated on it to take peace from the earth, and that they would slaughter one another, and a large sword was given to him.

Revelation 12:3

And another sign appeared in heaven, and behold, a great fiery red dragon, having seven heads and ten horns, and on his heads [were] seven royal headbands.

Treasury of Scripture Knowledge

Summary

The shield of his mighty men is made red, the valiant men are in scarlet: the chariots shall be with flaming torches in the day of his preparation, and the fir trees shall be terribly shaken.

Bible References

In scarlet

Isaiah 14:8
Even [the] cypresses rejoice over you, the cedars of Lebanon: 'Since you were laid down, no [wood] cutter comes up against us.'
Zechariah 11:2
Wail, O juniper, for [the] cedar has fallen, for [the] magnificent [trees] are ruined! Wail, oaks of Bashan, for the impenetrable forest has come down!