When Donald Trump wished his followers a “HAPPY GOOD FRIDAY” on Twitter — in ALL CAPS, naturally — it was only fair to wonder if he had any clue what “Good Friday” is even a reference to.

HAPPY GOOD FRIDAY TO ALL! — Donald J. Trump (@realDonaldTrump) April 10, 2020

Does he know that’s the day Jesus was killed? A prelude to Easter, which is the actual thing Christians are looking forward to?

Both Christian and non-Christian Twitter users were quick to call out Mr. “Two Corinthians” for his elementary mistake:

This is the *sad* day. The *happy* one is on Sunday. Join us next time for another episode of Easter For Three Year Olds. https://t.co/ih5zpMXcQ8 — David Baddiel (@Baddiel) April 10, 2020

And a festive Day Of Christ's Death Agonies to you too, Sir! https://t.co/EKEq0tCdJc — Doktor Zoom (@DoktorZoom) April 10, 2020

This is so sweet. My kids are always so excited by all the gifts under the crucifixion tree, but for me it's about quietly contemplating the joys of violent death at the hands of a tyrant https://t.co/15TE3RdDI7 — Chris Turner (@theturner) April 10, 2020

I am not even Catholic and I know that Good Friday is not a happy holiday. — David Weissman (@davidmweissman) April 10, 2020

I may be an atheist now but I spent 40+ years attending Mass, Tre Ore, doing Stations of the Cross etc. Clearly Donnie "Two Corinthians" doesn't understand the events of the Good Friday story any more than he does how to handle a pandemic. https://t.co/1tgn36F60z — PortiaMcGonagal (@PortiaMcGonagal) April 10, 2020

Wishing Christians “Happy Good Friday” is akin to wishing Jews a “Happy Yom Kippur”: It’s the most somber day of the liturgical year.

You would think conservative Christians would at least say something about it, but the usual suspects were strangely silent about any possible faux pas.

