The arrangement of the four Gospels is in perfect harmony. In the Synoptics [Matthew, Mark, and Luke] the call is to repent. In John the emphasis is laid upon believing. Some have thought that there is inconsistency or contradiction here. But we need to remember that John wrote years after the older Evangelists, and with the definite object in view of showing that Jesus is the Christ, the Son of God, and that, believing, we might have life through His Name. He does not simply travel over ground already well trodden. Rather, he adds to and thus supplements the earlier records, inciting to confidence in the testimony God as given concerning His Son. He does not ignore the ministry of repentance because he stresses the importance of faith. On the contrary, he shows to repentant souls the simplicity of salvation, of receiving eternal life, through a trusting in Him who, as the true light, casts light on every man, thus making manifest humanity’s fallen condition and the need of an entire change of attitude toward self and toward God.
--H.A. Ironside, Except Ye Repent, 37–38
