Authors:

In the war upon the powers of darkness, prayer is the primary and mightiest weapon, both in aggressive war upon them and their works; in the deliverance of men from their power; and against them as a hierarchy of powers opposed to Christ and His Church.

Jessie Penn-Lewis, Evan Roberts (2005). “War on the Saints: A Text Book on the Work of Deceiving Spirits among the Children of God, and the Way of Deliverance”, p.262, Wipf and Stock Publishers
In the war upon the powers of darkness, prayer is the primary and mightiest weapon, both in aggressive war upon them and their works; in the deliverance of men from their power; and against them as a hierarchy of powers