Charles Ellicott Commentary Ephesians 6:22

"whom I have sent unto you for this very purpose, that ye may know our state, and that he may comfort your hearts." — Ephesians 6:22 (ASV)

Whom I have sent unto you.—This verse corresponds word for word with Colossians 4:8, being a quasi-official statement of Tychicus’ commission. The words that he might comfort (or, encourage) your hearts, although they might apply generally to all messengers from an Apostle, may probably be best explained by reference to the tone of the Epistle to the Philippians—in which St. Paul shows so much affectionate anxiety lest his converts should be disheartened by his continued imprisonment—and to the exhortation in this Epistle not to faint at his tribulations for them (Ephesians 3:13).