15 You know that the household of Stephanas were the first converts in Achaia, and they have devoted themselves to the service of the Lord’s people. I urge you, brothers and sisters,

Read 1 Corinthians 16:15 Using Other Translations

I beseech you, brethren, (ye know the house of Stephanas, that it is the firstfruits of Achaia, and that they have addicted themselves to the ministry of the saints,)
Now I urge you, brothers--you know that the household of Stephanas were the first converts in Achaia, and that they have devoted themselves to the service of the saints--
You know that Stephanas and his household were the first of the harvest of believers in Greece, and they are spending their lives in service to God’s people. I urge you, dear brothers and sisters,