“Son of man, how does the wood of the vine surpass any other branch among the trees in the forest?
The prophet, we may suppose, was thinking what a glorious city Jerusalem was, above any city in the world; it was the crown and joy of the whole earth; and therefore what a pity it was that it should be destroyed; it was a noble structure, the city of God, and the city of Israel's solemnities.
Commenting on Ezekiel 15:1-8
Shall wood be taken thereof to do any work?.... The carpenter and joiner, the house or ship builder, are employed in; as to build houses of, make beams, rafters, floors, &c. build ships with, make masts of, &c. or any vessel or utensil for the use of man? it never is; it is not fit for any such purpose.
Son of man, What is the vine tree more than any tree, [or than] a branch which is among the trees of the forest? (a) Which brings forth no fruit, no more than the other trees of the forest do: meaning that if Jerusalem, which bore the name of his Church, did not bring forth fruit it would be utterly destroyed.