Acts 20:17-19
New Catholic Bible
17 Paul’s Farewell Speech at Miletus.[a] From Miletus, he sent a message to Ephesus, summoning the elders of the Church. 18 When they came to him, he addressed them as follows:
“You yourselves know how I lived among you the whole time from the first day that I set foot in the province of Asia. 19 I served the Lord with all humility and with tears, enduring the trials that befell me as a result of the intrigues of the Jews. Read full chapter
Footnotes
Here, in substance, is the ecclesial structure in which we live today (although only later would a distinction be made between “presbyters” and “bishops”).