The cedars in the garden of God could not hide him: the fir trees were not like his boughs, and the chestnut trees were not like his branches; nor any tree in the garden of God was like unto him in his beauty.
Cedars in the garden of God could not hide him - could not out-top him. No other king eclipsed him.
Garden of God - as in the case of the King of Tyre (Ezekiel 28:13, "Thou hast been in Eden the garden of God"), the imagery that is applied to the Assyrian king is taken from Eden; peculiarly appropriate, as Eden was watered by rivers that afterward watered Assyria (Pison, Gihon, Hiddekel, and Euphrates, Genesis 2:10-14). This cedar seemed to revive in itself all the glories of paradise, so that no tree there out-topped it.
The fir trees - the cypresses (Henderson).
The chesnut trees were not like his branches - `the plane trees' (Henderson) were not comparable to his branches.