Updated

Ted Cruz sometimes sounds more like a preacher than a presidential candidate.

But one biblical tenet he rarely evokes is tithing, a mandate that 10 percent of possessions be donated to God.

That's because tax records Cruz released between 2006 and 2010 show he and his wife donated less than 1 percent of their income to charity, and nothing to their church.

That underscores who Cruz was before running for president, when he was known more as a fiery fiscal conservative than a devout Southern Baptist.

Cruz's religion wasn't a centerpiece of his 2012 run for Senate in Texas.

Cruz also suggested in 2013 that politicians should "avoid ostentatiously wrapping yourself in your faith" — advice he's ignored amid his rise in the national polls.