"Disciples" and "junior prophets" live at the church. About 80 people share two dormitories.
Almost half the disciples are foreigners. Dave, 23, left, comes from the UK and turned down a place at university to move to Lagos.
He says that his friends back in England, "see how God has changed my life [and] understand this cannot be a cult".
Disciples stay close to visiting journalists, and refer to TB Joshua in adulatory terms, as "The Man of God".