Charlie Kirk was an evangelical Christian associated with the Calvary Chapel Association. Initially described as secular and critical of religious influence on politics, he later embraced Christian nationalism, advocating for a Christian form of government and a Christian population. In 2021, he co- founded Turning Point USA Faith to mobilize conservative Christians politically. He believed in Christian creationism and practiced observing the Sabbath with a religious significance. Kirk's faith played a central role in shaping his worldview and activism in his later years.