I Corinthians 16:12-16

Now concerning our brother Apollos, I strongly urged him to come to you with the brethren, but he was quite unwilling to come at this time; however, he will come when he has a convenient time. Watch, stand fast in the faith, be brave, be strong. Let all that you do be done with love. I urge you, brethren—you know the household of Stephanas, that it is the firstfruits of Achaia, and that they have devoted themselves to the ministry of the saints— that you also submit to such, and to everyone who works and labors with us.