"If I come": soon (3 Jn 1:14).
"I will call to mind": this is a threat of censure, rebuke, and punishment (cf. Acts 5:1 and following; Acts 13:8 and following; 1 Cor 4:21; 2 Cor 13:2, 3, 10). It is unknown, however, how the Apostle fulfilled this threat.
"Maligning us": that is, not only the traveling preachers, but even the elder Apostle himself. This was almost unbelievable insolence.
"With evil words": this refers to slander and gossip, although it is unknown what they consisted of.
Read more (81 words)
"And not content with that," and so forth. Diotrephes was vainglorious, proud, and self-willed. Not only does he himself lack brotherly love toward neighbors in general and the virtue of love for strangers in particular, since he does not receive the brethren. He also forbids those who wish to receive them, evidently acting willfully and contrary to Christ's commandment. He casts them out of the church, depriving them of communion with the Church, as though they were heretics or unworthy persons.