But several travelers say that the crocodile has a very strong scent of musk, and that he even imparts this smell to the water through which he passes, and therefore the text may be taken literally. This property of the crocodile has been noticed by several writers.

Matthew Henry Commentary

--The description of the Leviathan, is yet further to convince Job of his own weakness, and of God's almighty power. Whether this Leviatha be a whale or a crocodile, is disputed. The Lord, having showed Job ho unable he was to deal with the Leviathan, sets forth his own power in that mighty creature. If such language describes the terrible force of Leviathan, what words can express the power of God's wrath? Under humbling sense of our own vileness, let us revere the Divine Majesty take and fill our allotted place, cease from our own wisdom, and giv all glory to our gracious God and Saviour. Remembering from whom ever good gift cometh, and for what end it was given, let us walk humbl with the Lord __________________________________________________________________

Original Hebrew