President Barack Obama made a clear declaration of his Christian faith on Thursday and seemed to express some frustration that his beliefs continue to be called into question.

OBAMA/“Let me tell you, these past two years, they have deepened my faith,” Obama told a ballroom full of applauding believers at the annual National Prayer Breakfast in Washington.

“The presidency has a funny way of making a person feel the need to pray.”

He detailed how, after a non-religious upbringing, he came to define himself as a Christian.

“A call rooted in faith is what led me, just a few years out of college, to sign up as a community organizer for a group of churches on the south side of Chicago,” he said.