1 Corinthians 1:15

"I thank God that I baptized none of you but Crispus and Gaius." "Why are you elate at having baptized, when I for my part even give thanks that I have not done so!" Thus saying, by a kind of divine art he does away with their swelling pride upon this point; not with the efficacy of the baptism, (God forbid,) but with the folly of those who were puffed up at having been baptizers: first, by showing that the Gift is not theirs; and, secondly, by thanking God therefore. For Baptism truly is a great thing: but its greatness is not the work of the person baptizing, but of Him who is invoked in the Baptism: since to baptize is nothing as regards man's labor, but is much less than preaching the Gospel. Yea, again I say, great indeed is Baptism, and without baptism it is impossible to obtain the kingdom. Still a man of no singular excellence is able to baptize, but to preach the Gospel there is need of great labor. He states also the reason, why he giveth thanks that he had baptized no one. What then is this reason? "Lest anyone should say that ye were baptized into my own name." Why, did he mean that they said this in those other cases? Not at all; but, "I fear," saith he, "lest the disease should proceed even to that. For if, when insignificant persons and of little worth baptize, a heresy ariseth, had I, the first announcer of Baptism, baptized many, it was likely that they forming a party, would not only call themselves by my name, but also ascribe the Baptism to me." For if from the inferiors so great an evil arose, from those of higher order it would perhaps have gone on to something far more grievous.