He that keepeth his commandments, i.e. he whose whole soul is thus formed to obediential compliance with the Divine will, dwelleth in him; hath most intimate union with God in Christ; which is evident by that Spirit given to us, which hath effected both that holy frame, and that union: see 1 Thessalonians 14:23.
Related Commentaries of 1 John 3:24
1 John 3:24
24 And he that keepeth his commandments dwelleth in him, and he in him. And hereby we know that he abideth in us, by the Spirit which he hath given us.