I think it was Francis Chan who said that if you took away the Holy Spirit in churches today, sadly many would still keep on operating because they have been built completely on talent with no request from the supernatural.
“Many churches are empty, dry, and void of spiritual life because they have lost touch with the dynamic presence and power of the Holy Spirit. The Holy Spirit played an important role in the life and ministry of the early church. It is impossible to understand the explosive growth of the New Testament church without understanding the important role of the Holy Spirit in the church.” – Winfield Bevins
“Pray daily for a great outpouring of the Spirit on the Church and on the world. This is the grand need of the day—it is the thing that we need far more than money, machinery, and men. The “company of preachers” in Christendom is far greater than it was in the days of Paul; but the actual spiritual work done in the earth, in proportion to the means used, is undoubtedly far less. We need more of the presence of the Holy Spirit— more in the pulpit, and more in the congregation—more in the pastoral visit, and more in the school. Where He is, there will be life, health, growth, and fruitfulness. Where He is not—all will be dead, tame, formal, sleepy, and cold. Then let everyone who desires to see an increase of pure and undefiled religion, pray daily for more of the presence of the Holy Spirit in every branch of the visible Church of Christ.” -J.C. Ryle
“For much of church history the third Person of the Trinity has been virtually overlooked. However, today many people are hungry to experience the Holy Spirit in their life. God has given us the marvelous gift of His Holy Spirit.” – Winfield Bevins