The Vatican has made a ruling that I fully agree with: The Tetragrammaton, YHWH, should not be uttered as “Yahweh”.
“In recent years the practice has crept in of pronouncing the God of Israel’s proper name,” the letter noted, referring to the four-consonant Hebrew “Tetragrammaton,” YHWH. That name is commonly pronounced as “Yahweh,” though other versions include “Jaweh” and “Yehovah.” But such pronunciation violates long-standing Jewish tradition, the Vatican reminded bishops.
“As an expression of the infinite greatness and majesty of God, (the name) was held to be unpronounceable and hence was replaced during the reading of sacred Scripture by means of the use of an alternate name: `Adonai,’ which means `Lord,'” the Congregation said.That practice continued with Christianity, the letter explained, recalling the “church’s tradition, from the beginning, that the sacred Tetragrammaton was never pronounced in the Christian context nor translated into any of the languages into which the Bible was translated.”
I might point out that the practice got a big impetus from the Roman Catholic translation of the Bible, the New Jerusalem Bible, but I’m willing to let that go.