Former Cabinet Minister Alfred Ngaro's revealed the motivations behind his political comeback, saying Kiwi voters don't know who to trust.

Ngaro's formed a Christian party, to be known as New Zeal, which he'll formally launch tomorrow - just two months shy of election day.

He was a minister in Bill English's National Government, and says none of the political parties running for office this year fully embrace the Christian ethic.

Ngaro says his party will represent people across the board.

"When you run a business and you may be the owner- you could be a Christian, but you don't call it a Christian business, you call it a business. But people look upon the way that you conduct yourself, and that's what I hope that people will look at us too."

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