Job 41:3

3. Many supplications unto thee? That thou mayest set him, a captive, at liberty. The preceding verses evidently refer to the taking of the crocodile alive. Suspended on a rush cord, he is now represented as begging for his life. The ancients fancied that the dolphin, the supposed mortal enemy of the crocodile, would make supplications for its life. Eichhorn’s rendering. “Will he (sincerely) make moan unto thee,” were it correct, might justify his note based on a singular fancy of the ancients, that the crocodile moaned simply that he might entice the wanderer to sure destruction. Thence rises the idea, which, in the form of “crocodile’s tears,” has become proverbial.