Sen. Ted Cruz sounded a call to defend religious liberty, telling an audience of prominent evangelicals that these principles are under attack by the Obama administration.

"Today, religious liberty has never been more under assault," Cruz, R-Texas, said Wednesday at Liberty University's Convocation, a weekly gathering of Christian students. "We are called to action as believers, not to sitting quietly and hiding our faith under a bushel, but to stand and speak no matter what the consequence."

Cruz's prime example was the Obama administration's requirement that employers provide contraception to their employees, which is the central issue in the Hobby Lobby case before the Supreme Court.

Cruz, a potential 2016 presidential candidate, has been open about his faith and sounded similar themes in previous speeches, but these are noteworthy in part because of the setting.

Liberty University in Lynchburg, Va., was founded by the late Jerry Falwell, and the campus has been a popular stop in the past for politicians trying to reach a crucial bloc of voters for the Republican Party.