Passage
But that ye also may know my affairs, how I do, Tychicus, the beloved brother and faithful minister in the Lord, shall make known to you all things:
Ephesians 6:21 (ASV)
Nearby Context
Ephesians 6:19 And on my behalf, that utterance may be given unto me in opening my mouth, to make known with boldness the mystery of the gospel,
Ephesians 6:20 for which I am an ambassador in chains; that in it I may speak boldly, as I ought to speak.
Ephesians 6:21 But that ye also may know my affairs, how I do, Tychicus, the beloved brother and faithful minister in the Lord, shall make known to you all things:
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 6:23 Peace be to the brethren, and love with faith, from God the Father and the Lord Jesus Christ.
Study Lenses
The verse centers on "all things", "faith", "affairs", "tychicus", "beloved", "brother", "faithful", and "minister". It is saying that the verse draws attention to "all things" and "faith", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 20's "for which I am an ambassador in..." into verse 22's "whom I have sent unto you for...", so "all things" and "faith" belong inside that flow. In Ephesians context, the local focus is grace, union with Christ, the church, and new creation.
A plain takeaway is to answer the verse's own emphasis on "all things" and "faith" with trust shaped by these words, not by a vague optimism outside the passage.