Albert Barnes Commentary 1 Corinthians 16:15

"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)," — 1 Corinthians 16:15 (ASV)

I beseech you, brethren. The construction here is somewhat involved, but the sense is plain. The words, "I beseech you," in this verse, are evidently to be taken in connection with 1 Corinthians 16:16: I beseech you that you submit yourselves to such, etc. The design is to exhort them to pay proper deference to Stephanas and to all who sustained the same rank and character. The remainder of 1 Corinthians 16:15 is designed to state the reason why they should show respect and kindness to the household of Stephanas.

You know the house. You are acquainted with the household or family. Probably a considerable portion, or all, of the family of Stephanas had been converted to the Christian faith.

Of Stephanas (see the notes on 1 Corinthians 1:16). Paul there says that he had baptized his family.

That it is the first fruits of Achaia. They were the first converted to the Christian religion in Achaia (see the notes on Romans 16:5). Regarding Achaia, see also the notes on Acts 18:12.

That they have addicted themselves, etc. They have devoted themselves to the service of Christians; that is, by aiding the ministry; by showing hospitality; by providing for their needs; by attending and aiding the apostles in their journeys, etc.