Jerusalem's message was primarily aimed at youth, with their lyrics describing the band's relationship to God in an ordinary, but radical way. The band's purpose was expressly evangelistic. Their concerts have been described as a series of revival meetings which often included altar calls and occasionally exorcisms. When the band first toured in the mid-1970s in Sweden, their combination of Christian lyrics with a hard rock sound was very controversial. The band was only permitted to perform at a few churches.