A spokesperson for Liberty University tells TMZ Hip Hop, "We can confirm that Liberty University did not issue the Montero Hill 'acceptance letter' posted yesterday to social media, and we have no record of Montero Hill applying to the University. Liberty University exists to glorify God by equipping men and women in higher education in fidelity to the Christian faith expressed through the Holy Scriptures."

"We continue to pray for America and for the Gospel of Jesus Christ to be proclaimed across this land. We welcome all to apply and join us at Liberty University."

LNX posted the phony placard as part of his new song rollout that's hellbent on convincing fans he's not the devil-worshipping dandy that Dave Chappelle made him out to be in his newest Netflix special.

Many people noted the letter he posted was edited/old ... 'cause the ex-Prez whose John Hancock is on there died a long time ago -- so it was easy to spot the fake. Still, now we got LU officially shutting it down ... and sending prayers Nas X's way too to boot.

Of course, this stunt is just the latest LNX has pulled over the past few weeks to plug this new single of his -- 'J Christ' -- which is very much the opposite of his devil song from a few years ago ... "Montero (Call Me By Your Name)." Now, he's trying to seem holier than thou.

Speaking of this new track ... Lil Nas X dropped a teaser of the music video for it on Wednesday -- and there's a bunch of celebrity lookalikes heading up to the pearly gates.

Funny enough, we saw photos of these same actors a couple months ago doing a shoot -- and while we didn't know what this was for at the time ... we certainly do now. You can take a peek and check out the photos yourself to see what was happening behind the scenes.

Montero may not be a holy roller on campus next semester but he's still pumped to take his fans on a divine journey ... judging from his upcoming "J Christ" music video that spoofs several celebrities walking up the stairways to heaven.

We got a hold of some pics from the shoot ... doppelgängers of everyone from Taylor Swift to Oprah Winfrey, Michael Jackson, Kanye West -- even Queen Elizabeth can be seen Nasing it up!!!