By Dan Merica, CNN

Washington (CNN) - The two men locked in an intense campaign for the White House marked one of the rare days that neither has a campaign event by attending church services with their families on Sunday.

President Barack Obama, along with first lady Michelle Obama and their two daughters, Sasha and Malia, walked across Lafayette Square on an overcast Sunday in the nation's capital to attend mass at St. John's Episcopal Church.

During the sermon, the Rev. Michael Angell spoke about what he called "a summer of violence." He mentioned recent shootings, including the movie theater shooting in Aurora, Colorado, that killed 12 people late last month and the shooting at a Sikh temple in Oak Creek, Wisconsin, that killed six people earlier this month.

Readings during the service included Ephesians 5 and John 6. The first family took Communion from Angell following the sermon.