Faith without the work of obedience is dead.
If we hear the Gospel: Repent for the kingdom of God is at hand, and we don't Repent, which means to turn to God, by turning away from the power of darkness and Satan as our lord, to Jesus as Lord, then the faith that has come to us by hearing the Gospel message, is dead, and can not save.
Repenting is obeying the Gospel.
Those who don't repent, do not believe the Gospel, because they do not obey the gospel.
JPT