Author: Harry Tennant, paper back, 44 pages. First published by The Christadelphian (CMPA) as "Ye Servants of the Lord" 1964, this is the fourth printing (2013).
 
This booklet is a companion to The Ecclesial Guide by Robert Roberts. It is full of exhortation and practical advice for all who would serve in the ecclesia. The nine chapters are:
 
Doorkeepers
The treasury of the Lord
As wll the singers as the players on instruments
The president
Give attendance to reading
The work of the elders: tending the flock of God
If ye have any word of exhortation
Old heads and young shoulders
For all are Thy servants