What is the next part of 1 Corinthians about after chapter 3 verse 8?

After 1 Corinthians 3:8, the next part begins at verse 9. There, by the inspiration of the Holy Spirit through the Apostle Paul, God introduces the whole idea of works in the life of a believer, moving from planting and watering to the believer's works.

Les explains that he does not have time to do the next part justice, but he proceeds anyway. He then notes that in light of everything seen thus far in Corinthians, God is going to bring us now, by the inspiration of the Holy Spirit through the pen of the Apostle Paul, this whole idea of works in the life of a believer. He concludes by saying, 'Now verse 9.' So the next part after 1 Corinthians 3:8 is verse 9, and its subject is the believer's works.

1 Corinthians 3:9

For we are labourers together with God: ye are God’s husbandry, ye are God’s building.

What does Paul begin teaching about in 1 Corinthians 3:9?

Paul begins teaching about the whole idea of works in the life of a believer. In 1 Corinthians 3:9, he shifts to explain that God, by the Holy Spirit, inspires this theme through Paul's pen, following earlier points about planting, watering, and God giving the increase.