The most infuriating thing about watching Glenn Beck’s radio and television programs for four hours every day is listening to him constantly assert that The Blaze “is the only network dedicated to the truth” while he personally spews lies and misinformation over its airwaves day after day.

The worst part is that Beck constantly repeats lies on the air well after his claims have been debunked, as he did on Friday when he falsely asserted once again that “thirty percent of everything in our founding documents comes from one book, the Book of Deuteronomy“:

As Chris Rodda explained back in 2010 when David Barton first made this claim on Beck’s program, this false statement is based on a 1984 study by a University of Houston professor who found that, among the documents published during the founding era, the Bible was the most frequently cited source, but that was largely because “most of these citations come from sermons reprinted as pamphlets; hundreds of sermons were reprinted during the era, amounting to at least 10% of all pamphlets published.”

As Barton said back in 2010, 34% of the identifiable quotes from the thousands of document that were published during the founding era came from the Bible and Deuteronomy was the most frequently cited book among those quotes.

But Beck utterly misrepresents this time and again in order to claim that a one-third of the Constitution and Declaration of Independence came directly out of the Book of Deuteronomy.

It is entirely untrue, but Beck continues to repeat it over and over again while simultaneously portraying himself as a paragon of truth, honesty, and integrity.

In fact, later in this very same segment, Beck vowed to “always try to be a more honest person than I was yesterday.”

Apparently, that vow does not apply during the hours when he is broadcasting.