In the midst of the street of it, and on either side of the river, was there the tree of life, which bare twelve manner of fruits, and yielded her fruit every month: and the leaves of the tree were for the healing of the nations. In the midst of the street of it - That is, of the city which was described in the preceding chapter.
The tree of life - An allusion to Genesis 2:9. As this tree of life is stated to be in the streets of the city, and on each side of the river, tree must here be an enallage of the singular for the plural number, trees of life, or trees which yielded fruit by which life was preserved. The account in Ezekiel is this: "And by the river, upon the bank thereof, on this side and on that side, shall grow all trees for meat, whose leaf shall not fade - it shall bring forth new fruit, according to his months - and the fruit thereof shall be for meat, and the leaf thereof for medicine;" Ezekiel 47:12.
Twelve manner of fruits - Καρπους δωδεκα· Twelve fruits; that is, fruit twelve times in the year, as is immediately explained, yielded her fruit every month. As this was a great and spacious city, one fountain was not sufficient to provide water for it, therefore a river is mentioned; a great river, by which it was sufficiently watered. Some think that by this tree of life the Gospel is indicated; the twelve fruits are the twelve apostles; and the leaves are Gospel doctrines by which the nations - the Gentiles, are healed of the disease of sin. But this seems to be a fanciful interpretation.