1 John 3:6 — "keeps on sinning" does not mean Christians reach sinlessness

Mike reads 1 John 3:6: "No one who abides in him keeps on sinning; no one who keeps on sinning has ever seen him or known him." He argues the verse cannot support progressive sanctification toward sinlessness because the grammar does not indicate a process — it would imply sinlessness from the moment of salvation. He rejects using it that way on contextual grounds: (1) Revelation letters from Jesus accuse Christian churches of sin; (2) Galatians 6 assumes believers fall into trespasses; (3) 1 John 2:1 itself says "if any of us sin, we have an advocate" which presupposes ongoing sin among the saved. The Greek construction ("keeps on sinning" in the ESV) indicates continuous pattern of an ungodly lifestyle, not any single sin act. The verse distinguishes those living in dark ungodly rebellion from those walking with God.