The church makes money partly through "miracle" videos, sold online or outside the Synagogue.
A video costs 400 naira ($3) and claims are made that it can cure specific ailments.
The faithful believe that simply watching a video can heal.
A crew of cameramen follow TB Joshua throughout the Sunday service.
It is difficult to judge TB Joshua's wealth, although pastors in some of the new Pentecostal churches live in great luxury. One even has a Gulf Stream Jet.