Organization of the church
Ephesians 5:23 Eph For the husband is the head of the wife, even as Christ is the head of the church: and he is the saviour of the body.
Acts 14:23 And when they had ordained them elders in every church, and had prayed with fasting, they commended them to the Lord, on whom they believed.
Php 1:1 Paul and Timotheus, the servants of Jesus Christ, to all the saints in Christ Jesus which are at Philippi, with the bishops and deacons:
1 Timothy 3:8-13
2 Timothy 4:1-5
Hebrews 5:11-14
Ephesians 4:25