Throughout his ministry, Branham taught a doctrine of faith healing that was often the central teaching he espoused during the healing campaign. He believed healing was the main focus of the ministry of Jesus Christ and believed in a dual atonement; "salvation for the soul and healing for the body". He believed and taught that miracles ascribed to Christ in the New Testament were also possible in modern times. Branham believed all sickness was a result of demonic activity and could be overcome by the faith of the person desiring healing. Branham argued that God was required to heal when faith was present. This led him to conclude that individuals who failed to be healed lacked adequate faith. Branham's teaching on divine healing were within the mainstream of Pentecostal theology and echoed the doctrines taught by Smith Wigglesworth, Bosworth, and other prominent Pentecostal ministers of the prior generation.