Read 3 John 1:6 Using Other Translations
Which have borne witness of thy charity before the church: whom if thou bring forward on their journey after a godly sort, thou shalt do well:
who testified to your love before the church. You will do well to send them on their journey in a manner worthy of God.
They have told the church here of your loving friendship. Please continue providing for such teachers in a manner that pleases God.