God gave all of Adam's descendants a spirit. That spirit until born again is dead in tresppasses and sins. God puts His life in the psirit, not the soul. The soul has grown up sinning and continues to want to do what comes so naturally to it. Paul showed us that even his soul sinned which grieved not just the Holy Spirit within his spirit but grieved Paul too! But he was never not born again once God birthed him from above. Sin is like a viper's poison. But once God cleanses the spirit and comes to abide therein, the born again spirit remains sinless because God is in there. The soul/behavior mechanism is separate from the bornb again spirit (12 For the word of God is living and active, sharper than any two-edged sword, piercing to the division of soul and of spirit, of joints and of marrow, and discerning the thoughts and intentions of the heart. 1599 Geneva Bible)
Now the works of the flesh are obvious: immorality, impurity, licentiousness, idolatry, sorcery, hatreds, rivalry, jealousy, outbursts of fury, acts of selfishness, dissensions, factions, occasions of envy, drinking bouts, orgies, and the like. I warn you, as I warned you before, that those who do such things will not inherit the kingdom of God.The professed Christian who remains in sin will not inherit the kingdom of God. Paul is insistant that we must live according to the Spirit. Faith alone is not enough. This is what the Bible teaches.