Chief of Sinners Saved
1Tim 1:15 This is a faithful saying and worthy of all acceptance, that Christ Jesus came into the world to save sinners, of whom I am chief.
Not that he's saying that he continues to behave as the chief of sinners. For upon his conversion he ceased being characteristically a sinner - in the sense in which he's speaking here. And he says elsewhere "Do you not know that the wicked will not inherit the kingdom of God?" 1Cor 6:9
Nonetheless his history as the chief, the primary example of sinners reveals what it really means that Christ Jesus came into the world to save sinners, which is the gospel. This was not simply theological concept in Paul's mind. This saying was Paul's very real experience. Paul could say confidently from experience that Christ Jesus came into the world to save sinners.
Has this been your experience as well?