Verse 6.— He that saith he abideth in him. One may say, I am in the fellowship of God and his Son. That being true, such an one ought to show by his godly life that he walks as the Savior walked while here on earth. The Savior's conduct was irreproachable. With it God was pleased. So one claiming to be in the fellowship— that is, abideth in him— must conduct himself as Christ did. His conduct is better proof than a simple profession.