Destiny Church leader Brian Tamaki will tomorrow launch a political party after weighing up a move into politics for "a number of months".

In a statement, he invited media to his church in Auckland to be informed as to what the party would look like.

"This is not a decision which we have undertaken lightly," he said.

But because of an "escalating tide of poor decision-making" and the "eroding of New Zealand values by politicians – "we feel that we have had no choice but to stand up for the ever-growing silent majority of regular New Zealanders who are becoming more and more fed up and sick of the spin."

His comments come after weeks of speculation that Tamaki would be stepping into the political ring before next year's election.

Earlier this week, he said on Twitter he might launch a party next week.

He took to Twitter on the back of a review into bullying at Parliament, saying he may launch another party because "whose dumb enough to vote for that mess" [sic].

Today, he said that politics is not a game, nor is it a popularity contest.

"The fates of our children and our children's children are hugely important, and deserve all possible due consideration.

"It is a privilege and a responsibility to seek to represent the New Zealand People."

He said some people and parties in Parliament had forgotten this "fundamental truth".

"We look forward to reminding them, from now until Election Day 2020, just what it is that the New Zealand People expect of our representatives and leaders."