We must be very careful here. The Holy Father never said that this is a moral issue, nor did my anscestors. It was not that it was a sin or an offense to say YHWH. That was never the case, nor did the Holy Father make it the case.
It was that no one ever said it out of respect for that which beyond sacred, if you can imagine what I mean by that. But it is not a blasphemy or sin of any kind. Otherwise, one would not be allowed to say it at all. We say it all the time in Scripture classes. The Holy Father is trying to preserve a tradition that was handed down to us by the Jews, just as we preserve many other sacred traditions handed down to us by the Jews, that have nothing to do with morality.
Let’s be very careful not to make people feel that they have done something wrong by using the name YHWH. That’s not the case.
My Jewish mother always explained it best. I asked her once why we could not say YHWH. She, being eminently practical and well educated said.
"First of all, we have no idea how to pronounce it, because the ancient writers never put in the signals for the vowel sounds. That’s a stopper right there.
Second, do you ever call your grandparents Simon and Marion?"
I said,“No. I call them Papa and Bubbah” She asked me, “Why do you call them Papa and Bubbah?”
I said, “Because they’re special.”
She said, “That’s why we don’t call G-d by his name. Instead we call him Adonai.”
It made perfect sense.
It’s an act of love, not a sin to be avoided.
Fraternally,
Br. JR, OSF