. >> reporter: jeff bethke is the preacher in this sermon. he's speaking to a generation, jaded by scandal. >> i think the biggest thing, my generation desires authenticity. we want someone to tell the truth and live it out. we're kind of sick of the typical person up on a pedestal that six months later has a sex scandal. i think my generation wants to know that someone really believes and walks what they're talking about. >> reporter: this isn't your father's christianity. consider this, a kid with no name recognition and no background, is reaching a bigger audience than billy graham ever packed into a stadium. >> we have come to present the message of jesus christ. >> reporter: bethke, a guy that lives on a bunk bed with his roommate, and works helping disadvantaged kids is suddenly a very big deal. >> i want you to give a huge welcome to jeff bethke. >> reporter: churches across the country want to bring him out to speak and to perform. >> now that i know jesus, i both of my weakness. >> reporter: a recent church service, we found young pe

. >> reporter: jeff bethke is the preacher in this sermon. he's speaking to a generation,