'Horses' in the Bible

I saw by night, and behold, a man riding upon a red horse, and he stood among the myrtle-trees that were in the low valley; and behind him were red, bay, and white horses.

In the first chariot were red horses; and in the second chariot black horses;

and in the third chariot white horses; and in the fourth chariot grisled, strong horses.

That in which are the black horses goeth forth into the north country; and the white go forth after them; and the grisled go forth towards the south country;

And they shall be as mighty men, treading down the mire of the streets in the battle; and they shall fight, for Jehovah is with them, and the riders on horses shall be put to shame.

In that day shall there be upon the bells of the horses, HOLINESS UNTO JEHOVAH; and the pots in Jehovah's house shall be like the bowls before the altar.