These sin advocates don’t have a solid answer.
They believe no one lives a sinless life after being saved.
When the scripture is clear:
“He that committeth sin is of the devil; for the devil sinneth from the beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil.” (1 John 3:8)
These once saved always saved believers don’t seem to realize that they keep the works of the devil intact and prosperous with their damnable doctrine.
It’s a lost cause arguing with those brainwashed folks it seems…
I do not defend every version of “once saved, always saved.” Some people use that phrase as though anyone who once made a profession of faith is secure no matter what they later believe or how they live. I do not believe that.
I believe those who are truly born again have eternal security because Christ keeps His sheep. Jesus said, “I give unto them eternal life; and they shall never perish” (John 10:28). But a profession of salvation is not proof of regeneration, and a life of open, unrepentant sin gives serious reason to question whether the profession was ever genuine.
So calling everyone who believes in eternal security “sin advocates” does not answer the biblical position.
Neither does 1 John 3:8 teach sinless perfection. John had already written, “If we say that we have no sin, we deceive ourselves” (1 John 1:8), and, “if any man sin, we have an advocate with the Father, Jesus Christ the righteous” (1 John 2:1). Whatever 1 John 3:8 means, it cannot contradict what John already said.
But there is an even more serious issue. You have previously said, “The Son is not God then.”
Scripture says, “the Word was God” and “the Word was made flesh” (John 1:1, 14). Thomas said directly to Jesus, “My Lord and my God” (John 20:28). Colossians 2:9 says that in Christ “dwelleth all the fulness of the Godhead bodily.”
So before condemning others as “brainwashed” and teaching “damnable doctrine,” answer this plainly: Do you now believe that Jesus Christ is truly God manifested in the flesh?
If you still deny that, then the far more serious issue is not eternal security. You are denying the biblical Christ Himself. “Whosoever denieth the Son, the same hath not the Father” (1 John 2:23). Repent and believe in the true Lord Jesus Christ.