"The Devil and God Are Raging Inside Me" received positive reviews from critics, with many music publications pronouncing it as one of the best albums of the decade. Its legacy has grown immensely in the years since, and it is now credited as one of the most important and influential albums in the genres of alternative rock, post-hardcore and emo by fellow musicians, critics and music writers. Considered Brand New's best work by various sources including the band itself, the album shows the continuing progression and maturity as lyricists and songwriters by delving into darker subject matters such as existentialism, death, depression and religion. Musically, Brand New built off their pop punk origins and added in elements of indie rock, experimental rock and post-hardcore. The band embarked on a tour in 2016 to specifically commemorate the ten-year anniversary of the album's release, playing the seminal album in its entirety.