I. Co. 4:15- For though you might have ten thousand instructors in Christ, yet you do not have many fathers: for in Christ Jesus I have begotten you through the gospel.
Maybe this will help bring clarity and understanding of the roles between apostolic fathers and spiritual fathers and Sons!
Apostolic fathers primarily serve apostolic sons in ministry/leadership whom are becoming fathers, while spiritual fathers many times are developing sons from children to grow to maturity and serve as sons!!
(Sometimes spiritual fathers are not mature enough or secure enough to raise up and release sons to become fathers.)
Paul was a spiritual father to children and immature sons at Corinth but an apostolic father to Timothy and Titus!!!
(I. Co. 3:1-5; I. Tim. 1:2; Titus 1:4)