Nelson Banuchi all Gospels of repentance to unbelievers in the NT are aimed at the Jewish generation who would crucify Jesus. The call to repentance is a PREPARATION to believe in Jesus to receive eternal life, not a CONDITION of believing. It is not applied to Gentiles. There maybe calls for Gentiles to repent of idols in PREPARATION to believe, but not as CONDITIONS to believe. JOHNGospel is only book writeen to unbelievers to believe and 100 times mentions believing (or synonims of believing like following, drinking, eating), but never repenting as a condition of believing.