For 24 hours starting in the morning, dozens of clergy and people of faith will join him, making a religious case to restrict the flow of guns in the United States.

"As pastors, we know from ministering to those affected by gun violence and those who may have been directly impacted, how it ripples through our communities, impacting everything that happens," said Crebbin, who leads Newtown Congregational Church in Connecticut and was one of the first ministers to comfort families after the Dec. 14 fatal school shooting. "This is a moral issue that our nation has been facing for so long, and we're hopeful there will be a response."

As lawmakers prepare to debate gun legislation, Crebbin will be joined by five Connecticut pastors, the rabbi of Newtown's Congregation Adath Israel, Sojourners president the Rev. Jim Wallis and Rabbi David Saperstein, director of the Religious Action Center of Reform Judaism.