9 I wrote somewhat unto the church: but Diotrephes, who loveth to have the preeminence among them, receiveth us not. 10 Therefore, if I come, I will bring to remembrance his works which he doeth, prating against us with wicked words: and not content therewith, neither doth he himself receive the brethren, and them that would he forbiddeth and casteth [them] out of the church.
11 Beloved, imitate not that which is evil, but that which is good. He that doeth good is of God: he that doeth evil hath not seen God.
12 Demetrius hath the witness of all [men], and of the truth itself: yea, we also bear witness: and thou knowest that our witness is true.
Matthew Henry's Commentary on 3 John 1:9-12
Commentary on 3 John 1:9-12
(Read 3 John 1:9-12)
Both the heart and mouth must be watched. The temper and spirit of Diotrephes was full of pride and ambition. It is bad not to do good ourselves; but it is worse to hinder those who would do good. Those cautions and counsels are most likely to be accepted, which are seasoned with love. Follow that which is good, for he that doeth good, as delighting therein, is born of God. Evil-workers vainly pretend or boast acquaintance with God. Let us not follow that which is proud, selfish, and of bad design, though the example may be given by persons of rank and power; but let us be followers of God, and walk in love, after the example of our Lord.