Job 41:31

He maketh the deep to boil like a pot: he maketh the sea like a pot of ointment.

Ver. 31. He maketh the deep to boil like a pot] He troubleth the whole ocean, he maketh a mighty commotion in the sea, when he rolls himself therein upward and downward, and casts up water on high through a certain conveyance that he hath in his head (Plin. lib. ix. c. 3, 6).

He maketh the sea like a pot of ointment] Turning it into a team, like the scum of a boiling pot. Beza rendereth it thus, He maketh the sea like a mortar, wherein colours are beaten; that is, the whirling of the water is like unto a quern, that is turned round of the painter, to temper his colours.