1 Corinthians 16:15-18

Now I beseech you, brethren (ye know the house of Stephanas, that it is the firstfruits of Achaia, and that they have set themselves to minister unto the saints), that ye also be in subjection unto such, and to every one that helpeth in the work and laboreth. And I rejoice at the coming of Stephanas and Fortunatus and Achaicus: for that which was lacking on your part they supplied. For they refreshed my spirit and yours: acknowledge ye therefore them that are such.