Son of man. See note on Ezekiel 2:1.
Thou art like. Thou bast been likened to.
and thou art. yet art thou. The contrast is between what was noble and less noble.
whale. crocodile
seas. a collection of waters, like the branches of the Nile. Compare Isaiah 27:1.
rivers. Heb, nahar. Not the same word as in Ezekiel 32:6.