Every building, organisation or company requires foundations and structures if they are to succeed and the church is no different. Every local church needs a good structure in place.
Pastors can only do so much to fulfil the vision they have been given by God. They need all different types of help and part of that comes by ordaining elders to help with the smooth running of the church and to ensure the spiritual welfare of the congregation.
Deacons are posts that help with the running of a church, however elders are pillars that can be built upon, they bear a weight and responsibility for the church and as such, they are a support to the pastor.