How did the pagan Corinthians become new creations in Christ?

The pagan Corinthians became new creations in Christ by believing the gospel. Though formerly idolaters and immoral, they were brought out through faith in the gospel message, and the record describes them as new creations in Christ Jesus, a transformation that thrilled Paul and Titus despite remaining carnality.

Les explains that the Corinthian believers had been pagan idolaters and immoral, yet they were brought out by believing the gospel and became new creations in Christ Jesus. Even though many in the congregation were carnal and unspiritual, Paul took the bull by the horns, addressed the issues in his first letter, and the whole congregation changed. That change enhanced Paul's ministry, the congregation, and Titus. Les notes Paul could even say he had confidence in them in all things, which was remarkable for people recently brought out of paganism. He compares this with Christ's earthly ministry, such as the woman taken in adultery in John's gospel.

What were the Corinthians before believing the gospel and what did they become?

Before believing the gospel, the Corinthians were pagans, idolaters, immoral, and carnal, having recently come out of paganism. After believing the gospel, they became new creations in Christ Jesus, and despite remaining carnality, they brought joy to Paul and Titus.