How little we know of the Spirit of God.

We must be very careful in these matters. What do we know of the realm of the Spirit? What do we know of the Spirit falling on people? What do we know about these great manifestations of the Holy Spirit? We need to be very careful 'lest we be fund fighting against God,' lest we be guilty of 'quenching the Spirit of God'. -D. Martyn Lloyd-Jones, When the Spirit Comes With Power, P. 13