Since Switchfoot's first release in 1997, the band's sound has changed significantly.
With regard to their lyrics, Foreman notes "we try to make music for thinking people",[REF] which can be characterized by his allusions to the works of philosophers like Søren Kierkegaard and Augustine of Hippo in the songs "Sooner or Later (Soren's Song)" and "Something More (Augustine's Confession)" respectively.