Ha, ha — An expression of joy and alacrity declared by his proud neighings. Thunder — The loud and joyful clamour begun by the commanders, and followed by the soldiers when they are ready to join battle.
Related Commentaries of Job 39:25
Job 39:25
25 He saith among the trumpets, Ha, ha; and he smelleth the battle afar off, the thunder of the captains, and the shouting.