By Steve Holland COLUMBIA, South Carolina (Reuters) – President Joe Biden spoke about his religious faith at services on Sunday at an African-American church in South Carolina, as he works to bolster Black support likely to prove crucial to his re-election chances in November. Biden, a devout Catholic, was wrapping up a two-day visit to the state, where Democrats will hold their first-in-the-nation primary on Feb. 3. At Saint John Baptist Church in Columbia on Sunday, Biden sat next to U.S. Representative Jim Clyburn, whose support for Biden in 2020 was crucial to his winning the Democratic pr…