Horse in Fausset's Bible Dictionary
In Scripture used for war-like purposes, not agriculture
(except in treading out grain for threshing, Isaiah 28:28,
where for "horsemen" translated "horses".) Job's magnificent
description refers to the war horse (Isaiah 39:19-25), "hast
thou clothed his neck with thunder?" i.e. with the power of
inspiring terror. Rather "with majesty" (Umbreit), "with
quivering mane" (Maurer). The Greek connection between mane
(fobee) and terror (fobos) favors A.V. which is more poetic.
"Canst thou make him afraid (rather 'make him spring') as a
grasshopper?" So in Joel 2:4 war horses are compared to
locusts. Their heads are so like that the Italian for "locust"
is cavaletta, "little horse." "The glory of his nostrils is
terrible: he paweth in the valley and rejoiceth in strength,
he goeth on," etc.; "he swalloweth the ground with
fierceness," i.e. draws it in fierce impatience toward him
with his hoof, as if he would "swallow" it...