For from you has sounded forth the word of the Lord, not only in Macedonia and Achaia, but also in every place your faith toward God has gone forth; so that we need not to say anything.
So that we need not to speak anything - That is, wherever we go, we need say nothing of the fact that you have been turned to the Lord, or of the character of your piety. These things are sufficiently made known by those who come from you, by those who visit you, and by your zeal in spreading the true religion.