Commentary for Job 41:7

There is pride in his strong shields He takes great pride in the strength of his shields; they are the scales that are on him, which protect him like a shield.

closed That is the seal of his coat of mail, which is narrow, closed, and strong, for each scale is attached to him and attached to the next one, so that no creature can strike him between the scales. This is what is stated: They are so close to each other, that all of them are brought together and are close to each other.