Passage
For this cause, I bow my knees to the Father of our Lord Jesus Christ,
For this cause, I bow my knees to the Father of our Lord Jesus Christ,
Ephesians 3:12 in whom we have boldness and access in confidence through our faith in him.
Ephesians 3:13 Therefore I ask that you may not lose heart at my troubles for you, which are your glory.
Ephesians 3:14 For this cause, I bow my knees to the Father of our Lord Jesus Christ,
Ephesians 3:15 from whom every family in heaven and on earth is named,
Ephesians 3:16 that he would grant you, according to the riches of his glory, that you may be strengthened with power through his Spirit in the inward man;
The verse centers on "cause", "knees", "father", "lord", "jesus", and "christ". It is saying that the verse draws attention to "cause" and "knees", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 13's "Therefore I ask that you may not..." into verse 15's "from whom every family in heaven and...", so "cause" and "knees" 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 "cause" and "knees" with trust shaped by these words, not by a vague optimism outside the passage.