Proverbs 14:7 says:

Stay away from a fool, for you will not find knowledge on their lips.

That verse seems appropriate in light of the latest Bible-related scrap by GOP presidential contenders — this one involving Marco Rubio and Ted Cruz.

In case you missed it, Cruz fired a top aide Monday over — as the Los Angeles Times characterized it — a "charge of dirty tricks":

Already fighting accusations of underhanded campaigning, Cruz asked his communications director, Rick Tyler, to resign after Tyler posted a video on social media and claimed that the senator from Florida could be heard disparaging the Bible. The allegation was false and Tyler apologized.

“This was a grave error of judgment,” the senator from Texas told reporters in Las Vegas. Even if the charge had been true, he said, “we are not a campaign that is going to question the faith of another candidate.”

The Los Angeles newspaper noted that Republican frontrunner Donald Trump — who made headlines when he said "2 Corinthians," not "Second Corinthians" at Liberty University — was quick to weigh in: