Since we heard of your faith in Christ Jesus, and of the love which ye have to all the saints,
Since we heard - literally, 'Having heard,' etc.: implying that he had only heard of, and not seen them (Colossians 2:1). Compare Romans 1:8, where like language is used of a church which he had not at the time visited.
Faith in Christ, х pistin (G4102) en (G1722) Christoo (G5547)] - 'Christ-centered faith.'
Love which ye have to all - the absent as well as those present (Ellicott).