The Southern Baptist Convention (SBC), alternatively the Great Commission Baptists (GCB), is a Christian denomination based in the United States. It is the world's largest Baptist organization, the largest Protestant, and the second-largest Christian body in the United States. The SBC is a cooperation of fully autonomous, independent churches with commonly held essential beliefs that pool some resources for missions.
Churches affiliated with the denomination are evangelical in doctrine and practice, emphasizing the significance of the individual conversion experience. This conversion is then affirmed by the person being completely immersed in water for a believer's baptism. Baptism is believed to be separate from salvation and is a public and symbolic expression of faith, burial of previous life, and resurrection to new life; it is not a requirement for salvation. The denomination has a male pastorate, often citing 1 Timothy 2:12 as the reason it does not ordain women. All affiliated churches deny the legitimacy of same-sex marriage, saying that marriage can only be between a man and a woman, and also that all sexual relations should occur only within the confines of marriage. Other specific beliefs based on biblical interpretation vary by congregational polity, often to balance local church autonomy.