Christian life
Free Grace theology teaches that a person can believe in Jesus once, receive eternal security, and still go to heaven even if later in life they completely walk away from the faith, deny God, stop believing, or no longer consider themselves a Christian.
From what I understand, they believe salvation is secured by a single moment of genuine belief alone what Jesus did, not by continued faithfulness, repentance, perseverance, obedience, or discipleship afterward.
It also seems that in this view, actually living as a disciple or continuing as a Christian is secondary and optional rather than necessary evidence of salvation.
So even if someone later lives in total unbelief, rebellion, or openly rejects Christianity, they would still be saved because salvation can never be lost once received. I’m genuinely trying to understand this position better, not strawman it. Why do Free Grace believers believe this is biblical? What verses or theological arguments convince them that a person can completely abandon the faith and still remain saved forever?
Where did it come from?