In the OT a variety of supervisory roles are mentioned. In the NT "overseers" (traditionally translated "bishops") describes the role of local church leaders.

Exodus 5:6

Overseers in the OT

Ruth 2:5-6

In secular life

1 Kings 5:16
2 Chronicles 2:2
Nehemiah 3:5
Proverbs 6:6-7
Numbers 8:22
1 Chronicles 25:2

In religious life

2 Chronicles 23:18
Ezra 3:9
Nehemiah 11:11
Jeremiah 20:1
Matthew 20:8

Overseers in the NT

In secular life

Philippians 1:1

In the church

Acts 20:28

A title for local church leaders.

The role of local church "elders"

See also

1 Peter 5:1-4

Here, as elsewhere in the NT, "elders" and "overseers" are virtually synonymous.

1 Timothy 3:1-7

See also

Their qualifications

Titus 1:7
1 Peter 2:25

See also

A title of Jesus Christ

2203 Jesus Christ, titles and names of
5051 responsibility
7026 church, leadership of
7718 elders
7720 elders in the church
7734 leaders, spiritual
7793 teachers
7939 ministry
8424 evangelism