Passage
That Christ may dwell by faith in your hearts: that, being rooted and founded in charity,
That Christ may dwell by faith in your hearts: that, being rooted and founded in charity,
Ephesians 3:15 Of whom all paternity in heaven and earth is named:
Ephesians 3:16 That he would grant you, according to the riches of his glory, to be strengthened by his Spirit with might unto the inward man:
Ephesians 3:17 That Christ may dwell by faith in your hearts: that, being rooted and founded in charity,
Ephesians 3:18 You may be able to comprehend, with all the saints, what is the breadth and length and height and depth,
Ephesians 3:19 To know also the charity of Christ, which surpasseth all knowledge: that you may be filled unto all the fulness of God.
The verse centers on "faith", "christ", "dwell", "hearts", "rooted", "founded", and "charity". It is saying that salvation is received as God's gift through faith, so boasting is pushed out by the wording itself.
The nearby context moves from verse 16's "That he would grant you according to..." into verse 18's "You may be able to comprehend with...", so "faith" and "christ" 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 "faith" and "christ" with trust shaped by these words, not by a vague optimism outside the passage.