An essential element of the Great Commission is to teach the disciples to observe all things which Jesus has commanded. In order to invest in this training, we must develop the basic characteristic of believing that others are made capable by God and that God can work in them mightily. Each part, each person, the whole Church doing its work. The Church grows only as each part does its work empowered by Christ. Full-time preachers, teachers, and shepherds can be great blessings, but will never be a suitable substitute for the full cooperation by all members of the body to do ministry.
Unity is essential.
Factions frustrate fruit. Where fighting flourishes and differences separate, fruit withers on the vine. One Lord, one body, one task, one glorious result must be our passion. Appeciation of the diversity of gifts. Diversity of gifts, not of beliefs, doctrines, or traditions, contributes to the gospel's progress.