This is an interesting feast, because the Basilica di San Giovanni, Laterano, is the Mother Church – founded, incredibly, as long ago as 324. But what I love about today is the reading from Ezekiel. It is the beautiful imagery of the water flowing down to the sea which is so enchanting.

Then he brought me back to the entrance of the temple; there, water was flowing from below the threshold of the temple towards the east (for the temple faced east); and the water was flowing down from below the south end of the threshold of the temple, south of the altar. Then he brought me out by way of the north gate, and led me round on the outside to the outer gate that faces towards the east; and the water was coming out on the south side.”

He said to me, ‘This water flows towards the eastern region and goes down into the Arabah; and when it enters the sea, the sea of stagnant waters, the water will become fresh. Wherever the river goes, every living creature that swarms will live, and there will be very many fish, once these waters reach there. It will become fresh; and everything will live where the river goes. People will stand fishing beside the sea from En-gedi to En-eglaim; it will be a place for the spreading of nets; its fish will be of a great many kinds, like the fish of the Great Sea. But its swamps and marshes will not become fresh; they are to be left for salt. On the banks, on both sides of the river, there will grow all kinds of trees for food. Their leaves will not wither nor their fruit fail, but they will bear fresh fruit every month, because the water for them flows from the sanctuary. Their fruit will be for food, and their leaves for healing.

(Ezekiel 47: 1-2 & 8-10)