41:31 He maketh the deep to {k} boil like a pot: he maketh the sea like a pot of ointment.
(k) Either he makes the sea to seem like it is boiling by his wallowing, or else he spouts water in such abundance as it would seem that the sea boiled.
41:31 Boil - To swell, and foam, and froth by his strong and vehement motion, as any liquor does when it is boiled in a pot, especially boiling ointment. The sea - The great river Nile, is called a sea, both in scripture, as Isa 11:15, and in other authors, as Euphrates is called the sea of Babylon, Isa 21:1 Jer 51:36. Lakes also are most frequently called seas both in the Old and New Testament: and in such lakes the crocodiles are as well as in the Nile.
41:1-34 Concerning Leviathan. - The description of the Leviathan, is yet further to convince Job of his own weakness, and of God's almighty power. Whether this Leviathan be a whale or a crocodile, is disputed. The Lord, having showed Job how 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 a humbling sense of our own vileness, let us revere the Divine Majesty; take and fill our allotted place, cease from our own wisdom, and give all glory to our gracious God and Saviour. Remembering from whom every good gift cometh, and for what end it was given, let us walk humbly with the Lord.