Tong2020 said:
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I’d say a misuse of the passage there.
How do you build on the foundation, so that what you build with, may be burned but not you?
Christ is the foundation of the building of God. And all the people of God are built on top of him.
...fellow citizens with the saints and members of God’s household, built on the foundation of the apostles and prophets, with Christ Jesus Himself as the cornerstone. Ephesians 2:19-20
...you also, like living stones, are being built into a spiritual house... 1 Peter 2:5
But there is falseness planted and built into the field and building of God,
the result of fake and ineffective, or inadequate gospel messages, and ungodly teachings.
...at the end of the age. The Son of Man will send out His angels, and they will weed out of His kingdom every cause of sin and all who practice lawlessness. And they will throw them into the fiery furnace... Matthew 13:40-42
Now if any of this falseness in the kingdom that gets burned up at the end of the age is the result of your labor in the field and building of God you yourself may be saved (assuming you weren't actually tearing down the temple of God), but those people you ministered to who were found to be false and not able to withstand fire won't be around to be your crown of reward in the kingdom. You'll be there, but your work, the result of your labor, won't be. Sorry. No crown of joy, glory, and boasting for the labor of the co-worker of God that produced no lasting results. So be careful how you build!