Pastor Simon Lovo and Pastor Iven Marafi said the Commissioner of Police has already approved the march.
The Ministry of Education wants all children between 12 and 17 to be vaccinated against Covid-19.
The pastors said the government was not explaining the content of the vaccines, nor making public any known side effects.
The group claimed people have died after been vaccinated.
They said mandatory vaccination was depriving parents of their rights, and that there are other ways of combatting Covid-19.
