New Defender's Study Bible Notes
40:19 chief of the ways. The behemoth was the “chief” of all created land animals, which could only, therefore, have been one of the great land dinosaurs. These, like all other animals, were created on the fifth and sixth days of creation week. Seemingly, the dinosaur had representatives preserved on Noah’s ark. Some descendants survived to and beyond Job’s day, giving rise to all the traditions of dragons in various parts of the world.
40:19 his sword. No mere man could overcome such an animal, but God could! As Job beheld the great reptile, it might well have called to his mind the old Serpent of Eden, who was ultimately responsible for all the world’s sin and suffering. He also knew of the ancient promise of the Redeemer who would come some day to slay the Serpent. Furthermore, he had expressed faith in that coming Redeemer (Job 19:25), and had sensed that his sufferings might somehow be a trial to which God was subjecting him (Job 23:10). Perhaps God was helping him realize what was really going on behind the scenes in connection with his trials.