And I baptized also the household - The family. Whether there were any infants in the family, does not appear. It is certain that the family was among the first converts to Christianity in Achaia, and that it had evinced great zeal in aiding those who were Christians; see 1-Corinthians 16:15 - From the manner in which Paul mentions this, it is probable that Stephanas did not reside at Corinth when he was baptized, though he might have subsequently removed there. "I baptized none 'of you' 1-Corinthians 1:14. - that is, none of those who permanently dwelt at Corinth, or who were members of the original church there, but Crispus and Gaius - but I baptized also the family of Stephanas, 'now' of your number" - Or it may mean, "I baptized none of you 'who are adult members of the church,' but Crispus and Gains, though I also baptized the 'family' of Stephanas. If this be the true interpretation, then it forms an argument to prove that Paul practiced household baptism, or the baptism of the families of those who were themselves believers. Or the expression may simply indicate a recollection of the true circumstances of the case - a species of correction of the statement in 1-Corinthians 1:14, "I recollect now also that I baptized the family of Stephanas."
Household - οἶκον oikon. The house; the family. The word comprises the whole family, including adults, domestics, slaves, and children. It includes:
(1) The men in a house, Acts 7:10; 1-Timothy 3:4-5, 1-Timothy 3:12;
(2) "Domestics," Acts 10:2; Acts 11:14; Acts 16:15, Acts 16:31; 1-Timothy 3:4;
(3) "The family" in general; Luke 10:5; Luke 16:27.
Bretschneider. It was the custom, doubtless, for the apostles to baptize the entire "household," whatever might be the age, including domestics, slaves, and children. The head of a family gave up the entire "household" to God.
(That adult domestics and slaves were baptized without personal profession or other evidence of faith, is incredible. The word οἶκον oikon indeed includes domestics as well as children, out while the latter must have been admitted on the profession of their parents, it is reasonable to suppose that the former would be received solely on their own.)
Of Stephanas - Who Stephanas was, is not known. The Greek commentators say that he was the jailor of Philippi, who, after he had been baptized Acts 16:33, removed with his family to Corinth. But of this there is no certain evidence.
Besides - Besides these.
I know not - I do not know whether I baptized any others who are now members of that church. Paul would, doubtless, recollect that he had baptized others in other places, but he is speaking here particularly of Corinth. This is not to be urged as an argument against the inspiration of Paul, for:
(1) It was not the design of inspiration to free the memory from defect in ordinary transactions, or in those things which were not to be received for the instruction of the church;
(2) The meaning of Paul may simply be, "I know not who of the original members of the church at Corinth may have removed, or who may have died; I know not who may have removed to Corinth from other places where I have preached and baptized, and consequently I cannot know whether I may not have baptized some others of your present number." It is evident, however, that if he had baptized any others, the number was small.

The household of Stephanas - From 1-Corinthians 16:15, we learn that the family of Stephanas were the first converts in Achaia, probably converted and baptized by the apostle himself. Epenetus is supposed to be one of this family. See the note on Romans 16:5.
I know not whether I baptized any other - I do not recollect that there is any person now residing in Corinth, or Achaia, besides the above mentioned, whom I have baptized. It is strange that the doubt here expressed by the apostle should be construed so as to affect his inspiration! What, does the inspiration of prophet or apostle necessarily imply that he must understand the geography of the universe, and have an intuitive knowledge of all the inhabitants of the earth, and how often, and where they may have changed their residence! Nor was that inspiration ever given so to work on a man's memory that he could not forget any of the acts which he had performed during life. Inspiration was given to the holy men of old that they might be able to write and proclaim the mind of God in the times which concern the salvation of men.

And I also baptized the household of Stephanas,.... The same name with "Stephanios", or "Stephanio" in Pliny (e). Before he says he had baptized none but Crispus and Gaius; but recollecting things, he corrects himself, and observes, that he had also baptized the household of Stephanas, who by the Greek writers is thought to be the same with the jailer baptized by the apostle at Philippi, but was now removed from thence to Corinth, and was become a famous and useful man there. No argument can be formed from the baptism of his household in favour of infant baptism, since it must be first proved that he had any infants in his family, and that these were baptized; and if his household and the jailer's are the same, it is certain that his household were such who were capable of having the word of God spoke to them, and who actually did believe in God. And if they were not the same, yet it is clear that this household of Stephanas consisted of adult, converted, and very useful persons; they were the firstfruits of Achaia, and had addicted themselves to the ministry of the saints, 1-Corinthians 16:15.
Besides, that is, the above mentioned persons,
I know not whether I baptized any other; meaning at Corinth, for he might have baptized, and doubtless did baptize many more in other places, for anything that is here said to the contrary: of this he would not be positive; for though he might fully know, and well remember, on recollection, who, and how many, were baptized by him with his own hands there, yet he could not tell but that some persons might have removed thither, and become members of the church in that place, who had been baptized by him elsewhere,
(e) Nat. Hist. l. 7. c. 48.

household of Stephanas--"The first-fruits of Achaia," that is, among the first converted there (1-Corinthians 16:15, 1-Corinthians 16:17). It is likely that such "households" included infants (Acts 16:33). The history of the Church favors this view, as infant baptism was the usage from the earliest ages.

I know not - That is, it does not at present occur to my memory, that I baptized any other.