The Church Growth Movement promotes a balance between spiritual and numerical growth factors. For example, a definition of Church Growth used by the American Society for Church Growth reads,
“Church growth is that discipline which investigates the nature, function, and health of Christian churches, as they relate to the effective implementation of the Lord’s Great Commission to make disciples of all peoples (Mt. 28:19-20). It is a spiritual conviction, yet it is practical, combining the eternal principles of God’s Word with the practical insights of social and behavioral sciences.”
I like to say that Church Growth is all about “heart” and “hands.” Heart relates to the spiritual factors that produce a healthy church environment. Disciplines such as, prayer, fasting, biblical preaching, faith, and patient waiting on the Holy Spirit are all important aspects of spiritual growth. Hands relate to the practical involvement in the work of the Lord, which are often seen in faith planning, vision casting, developing strategy, and the use of appropriate methods in reaching people for Christ.
God grows His Church, but He uses our heart and hands in the work (1 Cor. 3:6-9).