Ephesians 1:15
15For this cause I also, having heard of the faith in the Lord Jesus which is among you and the love which you have toward all the saints,
“For this cause”—because of the blessings just named—Paul has heard of their faith in the Lord Jesus which is among you and love which you have toward all the saints. Trust directed to Christ overflows toward the whole household.
Faith and love are living evidences of a response to grace. Paul does not invent their story; he hears of people who have believed and who love. Such fruit can be nurtured—and must be guarded—under ongoing, resistible grace.
Paul has heard of their faith in the Lord Jesus which is among you and love which you have toward all the saints. Thanksgiving (v. 16) will rest on what God has already wrought in them.
Faith and love are gifts made visible. “Heard of” means the gospel has produced recognizable fruit; the very God who blessed them in Christ (vv. 3–14) is the source of this faith and this love.