1 Corinthians 16:12-18

But concerning Apollos our brother, I encouraged him greatly to come to you with the brethren; and it was not at all his desire to come now, but he will come when he has opportunity. Be on the alert, stand firm in the faith, act like men, be strong. Let all that you do be done in love. Now I urge you, brethren (you know the household of Stephanas, that they were the first fruits of Achaia, and that they have devoted themselves for ministry to the saints), that you also be in subjection to such men and to everyone who helps in the work and labors. I rejoice over the coming of Stephanas and Fortunatus and Achaicus, because they have supplied what was lacking on your part. For they have refreshed my spirit and yours. Therefore acknowledge such men.