Seeing you have purified your souls in your obedience to the truth through the Spirit in sincere brotherly affection, love one another from the heart fervently:
in obeying the truth: "Obeying" (hupakoee) is defined as "obedience, compliance, submission, of the things which one submits himself" (Thayer 637-2-5218). The word "truth" (aleethia) refers to "the truth, as taught in the Christian religion, respecting God and the execution of his purposes through Christ, and respecting the duties of man" (Thayer 26-2-225). Purification is not a mystical process. Salvation is by redemption and obedience.