He saith among the trumpets, Ha, ha - That is,” When the trumpet sounds, his voice is heard “as if” he said, Aha - or said that he heard the sound calling him to the battle.” The reference is to the impatient neighing of the war horse about to rush into the conflict.
And he smelleth the battle afar off - That is, he snuffs, as it were, for the slaughter. The reference is to the effect of an approaching army upon a spirited war-horse, as if he perceived the approach by the sense of smelling, and longed to be in the midst of the battle.
The thunder of the captains - literally, “the war-cry of the princes.” The reference is to the loud voices of the leaders of the army commanding the hosts under them. In regard to the whole of this magnificent description of the war-horse, the reader may consult Bochart, “Hieroz.” P. i. L. ii. c. viii., where the phrases used are considered and illustrated at length. The leading idea. here is, that the war-horse evinced the wisdom and the power of God. His majesty, energy, strength, impatience for the battle, and spirit, were proofs of the greatness of Him who had made him, and might be appealed to as illustrating His perfections. Much as people admire the noble horse, and much as they take pains to train him for the turf or for battle, yet how seldom do they refer to it as illustrating the power and greatness of the Creator; and, it may be added, how seldom do they use the horse as if he were one of the grand and noble works of God!