Jerry Bridges, Discipleship Journal, January/February 1984
Prayer is warfare with a defeated but still powerful enemy. When we allow our prayer lives to remain only on the level of immediate or "felt" needs, we risk the great danger of losing the struggle that God is ultimately interested in.
In 2 Corinthians 10:3–5, Paul gives us a clue to the kind of weapon we need to battle Satan:
For though we live in the world, we do not wage war as the world does. The weapons we fight with are not the weapons of the world. On the contrary, they have divine power to demolish strongholds. We demolish arguments and every pretension that sets itself up against the knowledge of God, and we take captive every thought to make it obedient to Christ.
The war we are engaged in is for the minds and souls of people. Our weapons are not physical, nor are they those of human logic and cleverness. They are divine.
When you are engaged in battle and the objective is a person’s mind, what are you going to use? The truth. Satan masquerades as an angel of truth, but we combat him with the real truth—the word of God. Paul tells us in Ephesians 6 to put on the full armor of God, so that we may be able to stand against the wiles of the devil. The list of armor is primarily defensive: helmet, breastplate, belt, sandals, shield and so forth.
In verse 17, however, Paul says, “Take the helmet of salvation and the sword of the Spirit, which is the word of God.” There are two Greek words that are translated, “the word of God.” One of them is logos, referring to Scripture in general. The other is a word that focuses on a specific passage of Scripture. In this verse, Paul is referring to the specific word of God—individual passages of the Bible that are brought to bear on individual battles. Just as Jesus answered Satan with specific passages of Scripture from the Old Testament when he was tempted in the desert, so we fight Satan with specific passages of Scripture that apply to the situation at hand.

Our first weapon in battling our foe is the word of truth. In verse 18 of Ephesians 6, Paul gives us our second: “And pray in the Spirit.” The second weapon is prayer. Whether we are evangelizing the lost, discipling believers, or trying to restore a lapsed brother or sister, the weapons are always the same: the word of truth accompanied by prayer in the Spirit. We need the Spirit of God to open our minds and release us from Satan’s captivity.
The battle for the souls of men and women is really not won in the witnessing encounter or the discipling meeting, but in prayer, before we ever get into those situations. Our actions are of course necessary, but it is futile to fight without paving the way by prayer against the devil.

Jerry Bridges was a well-known Christian writer and conference speaker. His best-known book, The Pursuit of Holiness, has sold well over a million copies. A prolific author, he has sold over 3.5 million copies of his various books, with several titles translated and published in a variety of foreign languages. He joined the staff of The Navigators in 1955, serving 60 years as a staff member in various capacities before transitioning to associate staff and serving within the collegiate ministry.