Titus 1:5-7	Elder = Bishop
1Peter 5:1-4	Elder = Shepard and Overseer
Acts 20:17,28	Elder = Shepard and Overseer
1Timothy 4:14	Elder = Presbytery KJV
Eph 4:11	Pastor = Shepard (from the Greek (poimaino)

Elder = Overseer, Bishop, Pastor, Shepard and Presbytery.

Timothy was an evangelist not a Pastor or Elder. 2Tim 4:5