(RNS) — Evangelical radio host Eric Metaxas used to make his living narrating cartoons about singing vegetables and writing bestselling biographies of Martin Luther and Dietrich Bonhoeffer.

Now Metaxas — host of Saturday’s “Jericho March” pro-Trump prayer protest in Washington, D.C. — is producing parodies of Christmas carols to promote 2020 election conspiracy theories.

Metaxas recently aired a video of him singing “Biden Did You Know?” — to the tune of “Mary Did You Know” — with lyrics written by conservative writer and editor John Zmirak of the Stream. After a few seconds of the a cappella group Pentatonix singing the traditional carol, Metaxas appears in front of images of his children’s book character Donald the Caveman, a figure inspired by Trump, and Michael Lindell (the “MyPillow” guy) before breaking into song.

“Joe Biden, did you know that the Democrats would give ballots to illegals?” he sings. “Biden, did you know that the Democrats wiped the servers past retrieval? Did you know that the Democrats could magically turn the tide? That you wouldn’t need any voters to land you your landslide?”

RELATED: How Eric Metaxas went from Trump despiser to true believer

The video also includes claims of dead voters and interference by Venezuela and billionaire George Soros.

In the background, the original lyrics of the song — addressed to the Virgin Mary — can still be discerned, including those that recount miracles: “the blind will see, the deaf will hear, and the dead will live again.”

Metaxas has been a vocal supporter of President Trump and an evangelist for conspiracy theories, recently claiming he would give his life for Trump’s fight against a “stolen election.”

Courts in Pennsylvania, Michigan, Wisconsin, and Georgia have repeatedly rejected claims of mass election fraud and other irregularities. On Friday (Dec. 11), the U.S. Supreme Court rejected a lawsuit filed by Texas Attorney General Ken Paxton asking the court to block those states from certifying their votes.

Metaxas’ embrace of Trump’s view of the recent election has baffled many of his erstwhile fans and friends in the evangelical world, especially his insistence that Jesus is on the side of the president against evil forces trying to destroy America.

The conservative Christian commentator Rod Dreher outlined his concerns about Metaxas’ claims in a recent blog post entitled “Eric Metaxas’s American Apocalypse,” in which Dreher speculates that if God is intervening in history, it’s to expose “intellectual and theological rot.”

Dreher told Religion News Service earlier this month his friend was sincere but misguided. “Whatever one thinks of Eric Metaxas’ political views,” he said, “I can assure you that they are genuine. Eric is sincere to the marrow. That doesn’t make him correct, but it does mean that he is not a cynic.”