Matthew Poole and continuators on Job 41:15

15. His scales are his pride , shut up together as with a close seal i.

He prides and pleaseth himself in his strong and mighty scales. Heb. his strong shields (i. e. scales) are his pride. Or (as other both ancient and modern Interpreters render it) His body (or, His back, as this word is used, Isa. 38. 17. which, if meant of the Crocodile, is emphatical, because his scales and strength is in his Back, whereas his Eelly is very soft and easily pierced.) is the strength of shields, i. e. fortified with scales strong as Shields. This is meant either, 1. of the Whale, whose skin, though it be smooth and intire and without scales, may be said to be, as (which Particle is oft understood) strong shields, because it is, as Galen reports exceeding hard and strong, and almost impenetrable and like a Shield, especially then when Shields were made of Leather; and so it is not onely on the back, as in the Crocodile, but also in the belly all over. Or, 2. of the Crocodile, which hath scales properly so called, and those most truely such as are here described, as all Authors and eye-witnesses consent.

p Closely compacted together, as things that are fastned together by a Seal.

Marginal references: Heb. strong pieces of Shield.