This study contributes to the scholarship on political and religious communication by deriving from key theoretical works a typology of Christian discourse. We employ this typology in a computer‐assisted content analysis of presidential communication across 3 decades. Developing an argument about the manner in which changing religious identification in America might influence presidential discourse, we expect and find that presidents prefer abstract to concrete religious discourse and that Barack Obama's Christian discourse has differed from that of his predecessors. Situating these findings within 2 theories of religion in public life—secularization and pluralism—we suggest that recent shifts in presidential discourse signal a move toward greater pluralism.