What does 2 Corinthians 6:3 mean?

Scripture implored the Corinthians to be reconciled to God through faith in Christ, to take advantage of the "day of salvation." Now Paul begins once more to defend and commend the integrity of his own ministry to the Corinthians.

He states that he and his co-workers have placed no obstacle in the way of anyone who would come to faith in Christ. He insists that nobody could find any fault with their ministry. By "fault," Paul means a lack of integrity or presence of scandal that might cause a potential believer to question whether the message of the gospel could be trusted. While no person is perfect, it's reasonable for people to be suspicious of someone who preaches morality but lives in sin; Paul's life provides no such room for criticism.

Paul insists that he and his co-workers have cleared the path to faith in Christ by remaining above reproach in their ministry. Nobody could ever point to them as a legitimate reason anyone may have missed the grace of God through faith in Christ.