What does Paul say about working together in the building in verse 9?
Paul states that in verse 9, believers are working together in the building, which is the body of Christ. He, as a wise master builder, laid the foundation, and each one must take heed how he builds on it. This building is the church.
Les explains that verse 9 describes believers working together in the building, which is the body of Christ. He illustrates with a master builder who is present from the start, staking out the site and laying the foundation, not arriving when the building is half done. Paul claims this role, having laid the foundation, and warns that each person must take heed how he builds thereon. Les notes that this is the church, the body of Christ, and that following Paul's footsteps requires careful building. He then directs listeners to I Timothy, chapter 1, to show how study leads to these things following, which is how the Holy Spirit works.
For we are labourers together with God: ye are God’s husbandry, ye are God’s building.