A hard-line Catholic bishop is accusing President Joe Biden of mocking the Catholic faith despite his claims of being a “practicing Catholic.”

The Catholic bishop of Springfield, Illinois, Thomas John Paprocki, took aim at the president in a video titled, “Biden Mocks Our Catholic Faith.” In the video, Paprocki spoke about heresy, schismatic behavior and apostasy.

Paprocki pointed to Biden’s promise in his State of the Union Address to do his best to restore Roe v. Wade. He then brought up an incident from last month in which Biden made the sign of the cross during an abortion rally in Florida.

“According to news reports describing the incident, Biden made the sign of the cross while a Biden supporter onstage criticized Florida Governor Ron DeSantis for signing a bill into law reducing the time from which an abortion in the state would be legal from 15 to six weeks of gestation. With Biden standing next to Florida Democratic Party chairwoman Nikki Fried, she said, “And then we come back here to the state of Florida where 15 weeks wasn’t good enough, so we had to go to six weeks,” referring to the new limit until which abortion is allowed under state law. As soon as Fried said, “wasn’t good enough,” Biden began to cross himself with the sign of the cross,” Paprocki stated.

The bishop quoted Bishop José Ignacio Munilla of the Orihuela-Alicante Diocese in Spain in slamming the sign of the cross Biden made while in the middle of an abortion rally as a “sacrilegious” act.

“I fully support Bishop Munilla and agree with what he said. To misuse this sacred gesture is to make a mockery of our Catholic faith. The Epistle of St. Paul to the Galatians says, ‘Make no mistake. God is not mocked,’” he said.

After he released his video, Paprocki granted an interview shedding more light into why he thinks Biden is committing heresy with his support for abortion.

As he explained, “Heresy is the denial, or the obstinate doubt about some truth that is to be believed with divine or Catholic faith. … If you reject something like the Ten Commandments, that’s revealed by God. That’s divinely revealed; God gave Moses the Ten Commandments to give to the people of Israel and to all of us. … If a person says, ‘I don’t think adultery’s that big a deal, I reject the teaching,’ basically saying, ‘I reject the Sixth Commandment and therefore I don’t think adultery’s the problem,’ now you’re rejecting something that’s divinely revealed. In that case, you’re entering the area of something that would be considered heretical.”

“Part of the big problem with what President Biden has been saying is, in effect, he’s rejecting at least part of the Fifth Commandment, which says, “Thou shall not kill.” And he seems to be saying he has no problem with killing babies in the womb,” he added.