Not all rock music questions our place on this earth, of course, and it isn’t always going to be there to answer life’s greatest mysteries either, but for a time, it was certainly important to the growth and expansion of culture. However, the themes of blues music have existed long before blues was first considered as a mere concept. U2 were certainly not the first band of their kind to exist, and they’ve got several decades worth of rock and blues music to look back on as their main inspiration. As a deeply religious person, Bono regularly questions his reasons for his faith in his lyrics, and in a 2017 interview with Rolling Stone, he made comparisons between the classic blues musicians and a notable Biblical figure. “I read the Psalms of David all the time,” Bono postulated.