The flakes of his flesh are joined together: they are firm in themselves; they cannot be moved.
Flakes - rather, dewlaps. That which falls down: margin, fallings х mapaal (H4651), from naapal (H5307), fall]. They are "joined" fast and firm together, not hanging loose, as in the ox.
Are firm - Umbreit and Maurer, '(His flesh) is spread over him.' [The image in yaatsuwq (H6694), from yaatsaq (H3332), is from metal poured out and spread until it becomes hard and firm, as the English version rightly expresses.]
In themselves - rather, upon him.