Colossians 4:8
Whom I have sent unto you for the same purpose, that he might know your estate, and comfort your hearts;
Cross-reference
Colossians 2:2 prays for hearts to be encouraged — the very goal Tychicus was sent to achieve, linking the letter's prayer to its action.
Ephesians 6:22 uses nearly identical wording about Tychicus — same purpose: inform and encourage hearts.
In 1 Thessalonians 3:2, Paul sends Timothy to encourage and strengthen, directly paralleling Tychicus's mission here.
In Philippians 2:19, Paul sends Timothy to bring news and encouragement, closely paralleling Tychicus's mission to the Colossians.
In 1 Thessalonians 3:5, Paul sends Timothy to check on the church's faith — same motive of sending someone to gain news and strengthen hearts.
In 2 Corinthians 12:18, Paul also sends a coworker (Titus) to churches, mirroring the practice of sending trusted messengers for encouragement and oversight.
Philippians 2:28 shows Paul sending Epaphroditus to bring joy and reduce anxiety — a similar pattern of sending a coworker for encouragement.