Job 41:2

Second, he shows that man cannot overcome him in the manner in which certain large land animals are overcome. An ox is restrained by man using an iron ring which is placed in its nostrils, by which a man leads him where he wills. To …

Wilt thou put a ring into his nostrils? Or wilt thou bore through his jaw with a bracelet? 21. As stratagems are signified by 'nostrils,' so by a 'ring' is designated the omnipotence of Divine Power. For when it keeps us from being seized by temptations, it encircles around and holds firm in wondrous ways the snares of the ancient enemy. A ring is, therefore, put into his nostrils, when by the strength of heavenly protection drawn around us, his cunning is so restrained, as not to prevail so far against the weakness of man, as far as it secretly searches out its fatal arguments. But by the name 'ring' can be designated also the aid of the secret judgments, which is put into the nostrils of this Behemoth when he is restrained from his artful cruelty. Whence it is well said by the Prophet to the King of Babylon, when he is kept from injuring the Israelites; I will put a ring in thy nostrils. [Is. 37, 29] As if it were plainly said; Thou breathest hard with thoughts of guile; but from being unable to fulfil thy desires, thou bearest in thy nostrils the ring of My omnipotence, in order that when thou pantest more eagerly for the death of the righteous, thou mayest return unsatisfied from their life. But that which Holy Scripture calls in this place a 'ring,' it calls a 'sickle' by John in the Apocalypse. For he says, I looked, and behold a white cloud, and upon the cloud one sitting like the Son of Man, having on His head a golden crown, and in His hand a sharp sickle. [Rev. 14, 14] For the power of Divine judgment is called a 'ring,' because it binds on every side; but because in its cutting it embraces all things within it, it is marked out by the term 'sickle.' For whatever is cut by a sickle falls within it, in whatsoever direction it is turned. […]

Hence it is that this very Mary of whom we speak lives, because He who owed nothing to death lay down for the human race. Hence it is that we daily return to life after our sins, because our Creator descended without guilt to our punishment. Behold, the ancient enemy has now lost the spoils he had begun to take from the human race; he has lost the victory of his supplanting. Daily sinners return to life; daily they are snatched from his jaws by the hand of the Redeemer.

Canst thou put an hook into his nose?....

Canst thou put a hook into his nose - Or rather, a “rope,” or “cord.” The word used here (אגמון 'agmôn) means “a caldron,” or “kettle” Job 41:20, also a reed, or bulrush, growing in marshy places, and thus a rope made of reeds, a rush-cord. The idea is, that he could not be led about by a cord, as tame animals may be. Mr. Vansittart, however, supposes that the words here are expressive of ornaments, and that the allusion is to the fact mentioned by Herodotus, that the crocodile was led about by the Egyptians as a divinity, and that in this state it was adorned with rings and various stately trappings. There can be no doubt that such a fact existed, but this does not accord well with the scope of the passage here. The object is to impress the mind of Job with a sense of the strength and untamableness of the animal, not to describe the honors which were paid to it. Or bore his jaw through with a thorn - Or with a ring. The word here properly means a thorn, or thorn-bush, Job 31:40; Pro 26:9; and then also a ring that was put through the nose of an animal, in order to secure it. The instrument was probably made sharp like a thorn or spike, and then bent so as to become a ring; compare Isa 37:29. Mr. Bruce, speaking of the manner of fishing in the Nile, says that when a fisherman has caught a fish, he draws it to the shore, and puts a strong iron ring into its jaw. To this ring is fastened a rope by which the fish is attached to the shore, which he then throws again into the water. “Rosenmuller.”