Paul was a spiritual father to the people who went to the Corinthian church and also many other Christians.

1 Corinthians 4:

¹⁴ I am not writing these things to shame you, but to warn you as my beloved children. ¹⁵ For even if you had ten thousand others to teach you about Christ, you have only one spiritual father. For I became your father in Christ Jesus when I preached the Good News to you. ¹⁶ So I urge you to imitate me.

¹⁷ That’s why I have sent Timothy, my beloved and faithful child in the Lord. He will remind you of how I follow Christ Jesus, just as I teach in all the churches wherever I go.

¹⁸ Some of you have become arrogant, thinking I will not visit you again. ¹⁹ But I will come—and soon—if the Lord lets me, and then I’ll find out whether these arrogant people just give pretentious speeches or whether they really have God’s power. ²⁰ For the Kingdom of God is not just a lot of talk; it is living by God’s power.