The need for lay people is very important to help build the church because the church can not afford to pay every worker as full-timers. How can the church grow if every worker is paid? Without laymen and volunteers the whole burden of work will be left on the shoulders of the very few full-time workers to do.
The aspect of this teachings will unveil the consequences on the churches if there are no laymen and volunteers.
Verses; Matthew 16:24, Luke 16:10-12, 2 Thessalonians3:11, 1 Timothy5:13