Pope Francis may need to go to confession after inadvertently blurting out an Italian F-bomb during his weekly blessing from the Vatican.

“If each one of us does not amass riches only for oneself, but half for the service of others, in this f–k [pause], in this case the providence of God will become visible through this gesture of solidarity,” Francis said to the faithful gathered in St. Peter’s Square, Italian media reported.

His Holiness meant to use the Italian word for “example,” which is “caso.”

Instead, he used the word “cazzo,” which Italians use as a synonym for the four-letter obscenity.

The papal slip-up immediately went viral on Italian websites and quickly made its way to YouTube.

But the 77-year-old pontiff kept his cool, and his defenders took to the Internet to say it was a common mistake for native Spanish speakers when they talk in Italian.

Others said the literal translation of the word is a synonym for the male organ — but that it is also commonly used as the F-word.

A Vatican spokesman had no comment on the foul-up.

Warning: Graphic language