Where does Paul encourage them to call him father?? Youre reading your Roman Catholic bias into the text. Thats a poor way to understand the Word.
Where does Paul encourage them to call him father??
1 Cor 4:14
The KJ is good enough for me but for those of little understanding maybe the NIV works better
Corinthians 4:14-21
14 I am writing this not to shame you but to warn you as my dear children. 15 Even if you had ten thousand guardians in Christ, you do not have many fathers, for in Christ Jesus I became your father through the gospel. 16 Therefore I urge you to imitate me. 17 For this reason I have sent to you Timothy, my son whom I love, who is faithful in the Lord. He will remind you of my way of life in Christ Jesus, which agrees with what I teach everywhere in every church.
This takes no explanation so i will not insult you by explaining it, just note he told them he was their father ( a tittle )