Theodoret of Cyrus: Multiple Elders (but not Bishops) in One City

An overseer, you see, must be above reproach as God's manager (v.7). From this it is clear that they called the elders overseers: after saying, that you might appoint elders in every city, he went on, An overseer, you see, must be above approach. Now, it was the custom for there to be in each city a number, not of bishops, but of elders.

- Theodoret of Cyrus (around A.D. 393 to around A.D. 457), Commentary on Titus, Chapter 1, in Theodoret of Cyrus, Commentary on the Letters of St. Paul, Volume 2, p. 253 (2001), Robert C. Hill translator.