He said 40 people had joined the Rotorua church in the past three months and it was highly active within the community.
The church had fed 500 people a couple of weeks ago and gave away firewood and groceries in response to recent business closures and job losses. At a family blessing day this weekend, every child would be given a Christmas present, he said.
"All that other stuff - it means way more," he said. "[We're] having the time of our lives, the church is going well ... people within the church are doing well."
Bishop Tamaki has remained silent about Mr Lewis' departure but a text from the church said "Richard Lewis has moved on from our employ. For any other comment you will need to contact Richard."
Associate Professor Peter Lineham of Massey University, who wrote the book Destiny: The Life and Times of a Self-Made Apostle, said Mr Lewis was an "absolutely loyal" servant to the church and Bishop Tamaki, and his departure was "very significant" - the first major Maori defection in Destiny Church's higher echelons.
Dr Lineham said the development of the Tamakis' City of God in South Auckland had "clearly been financially constrained" and "the speed of finishing has been exceptionally slow".
The site includes a 1600-seat auditorium, a chapel, an early childhood centre and a full school offering Cambridge exams. - Additional reporting New Zealand Herald.