Exactly what are you trying to make this verse say Tom?
Can you not understand what it does show
1 Corinthians 4:15 (ESV)
15 For though you have countless guides in Christ, you do not have many fathers. For I became your father in Christ Jesus through the gospel.
Paul preached the gospel to the Corinthians they believed and were born again
1 Corinthians 15:1-11 (ESV)
1 Now I would remind you, brothers, of the gospel I preached to you, which you received, in which you stand,
2 and by which you are being saved, if you hold fast to the word I preached to you—unless you believed in vain.
3 For I delivered to you as of first importance what I also received: that Christ died for our sins in accordance with the Scriptures,
4 that he was buried, that he was raised on the third day in accordance with the Scriptures,
5 and that he appeared to Cephas, then to the twelve.
6 Then he appeared to more than five hundred brothers at one time, most of whom are still alive, though some have fallen asleep.
7 Then he appeared to James, then to all the apostles.
8 Last of all, as to one untimely born, he appeared also to me.
9 For I am the least of the apostles, unworthy to be called an apostle, because I persecuted the church of God.
10 But by the grace of God I am what I am, and his grace toward me was not in vain. On the contrary, I worked harder than any of them, though it was not I, but the grace of God that is with me.
11 Whether then it was I or they, so we preach and so you believed.
that is how Paul begot them - used instrumentally in the Corinthians born again experience
Preaching a gospel which is not believed is of no benefit
the Corinthians however believed
The gospel and faith in the gospel preceeds regeneration
Hebrews 4:2 (ESV)
2 For good news came to us just as to them, but the message they heard did not benefit them, because they were not united by faith with those who listened.