. >> reporter: that's his father david lavelle.ne of the founders of the group that doesn't just include christina and jonah, but ten kids raised to join him in these sermons that make people very angry. [ indiscernible ] >> you won't tell me nothing! >> reporter: some of the people we have spoken to a lot when they see your kids it is owe cape f -- okay for adults. kids shouldn't be put in a position like this. >> they'll take their kids, to movies, hockey games, all kind of violence. never think about what they're exposing them to. >> reporter: "nightline" spent 48 hours with the lavelles. >> we are the lavelle family. >> they may interview me, i'm the new preacher. >> suzanna lavelle is 11 and tonight getting ready to undergo this unusual rite of passage. >> what do you expect from people out there on the streets? >> a lot of people get really mad. and they -- claim that you are shoving your religion down their throat. >> reporter: the lavelles long had their children accompany them on street missions. >> the preachers will come

. >> reporter: that's his father, david lavelle, one of the founders of the group that doesn't just include ten kids being raised to join him in these sermons that often make people very angry. [ shouting ] >> i'll tell you why -- >> you don't know nothing. >> reporter: "nightline" recently spent 48 hours with the lavelles. >> we are the lavelle family. >> reporter: the lavelles have long had their children accompany them on these street missions. >> the preachers are going to come and ruin everything. >> reporter: their fundamental belief that churches preach a candy-coated watered down message skirting sins in order to appeal to a broader audience. >> this is what you call love speech. we're telling the truth here. we love you. >> reporter: depending where you stand, their version is either tough love or annoying and inappropriate. friday, we catch up with them outside one of their favorite targets -- the spokane islamic center. >> allah didn't give his life for you, allah doesn't give you power to be holy. what does allah give you? nothing. >> reporter: when they're not preaching, they l