Verse 12 reminds us whom we are fighting against. Paul says clearly that the enemy is not other people but rather against the devil and his demons. It is easy for us to think of people and circumstances as our enemy but that is never the case. The devil may use people and circumstances to attack us but he is the real enemy. We need to put our efforts into defeating Satan, not in fighting other people or our circumstances.
Now there are two more things we need to remember about this war. First, and most important, the devil is not equal to God. Some people have the idea of good and evil as equal forces in a cosmic battle. Perhaps like the concept of yin and yang. This is a lie that the devil wants us to believe. The truth is that Satan is only a created being. Compared to us, he may be strong but compared to God he is nothing. The Bible tells us that the devil can’t do anything without God allowing it. We saw this in our study of Job. The devil can only go as far as God's leash lets him.
The devil can not defeat God. The second thing to remember is that not only can the devil not win, but that he has already lost. Jesus has already defeated the devil and broke his power at the cross. God allows the fight to continue but the only way the devil can ever have victory over us is if we surrender to him. The devil is not strong enough to overpower us when we stand in the power of God. It is only when we give up and refuse to continue fighting or stop using God’s power that the devil defeats us.
Verses 13 to 18 talk about the spiritual equipment God gives us to fight our battles. Paul compares them to armor so we will first look at the purpose of the armor and then learn about the spiritual tools. There is a helmet and breastplate that protect the two most vital organs in the body brain and heart. A shield is a further defense for the rest of the body. A belt keeps the breastplate in place is also where the soldier hung his sword. Strong and comfortable footwear are important for protecting the feet when walking for long distances or when walking in rough terrain. After all, a soldier who can’t walk can’t fight.
Most people think of armor as a defensive weapon. While it is true that armor’s purpose is to protect the wearer, a soldier had no need of armor unless he was going into battle. In fact the armor that Paul describes is that of a Roman infantryman who is preparing to attack. Roman soldiers would attack in a formation 12 deep and 12 wide. Each soldier would carry a large shield almost as big as a man. The shield was made of wood and leather soaked with water so flaming arrows could not penetrate it. The soldiers on the sides of the formation would hold their shields to the outside to protect from attack from the side. Soldiers in the inside of the formation would put their shields over their head to protect from arrows coming down from the top. That way the shields formed a protective shell over and around the formation. Then they could march towards the enemy safely. If you ever saw the movie Gladiator it showed a good example of this in the opening scenes.
Christians should always be attacking the enemy, not waiting to be attacked. Jesus said in Matthew 16:18 that the gates of hell would not be strong enough to defeat us. Gates do not attack people, people attack gates! Jesus was intending that Christians should constantly be attacking the kingdom of darkness so He provided us with the proper equipment to do so. Too often Christians just try to hold on and not fall. We should be moving forward and expanding the Kingdom of Heaven. The way we attack the devil is to spread the gospel by living a life that brings glory to God.
Now, I need to give you two words of caution. First of all, it is not our job to go out and look for fights with the devil. Looking for fights is the commander's job. We are soldiers, our role is to follow orders. We need to focus our attention on God and find out what He wants us to do. Once we hear from God, then obey Him. Obedience will eventually bring us into the battle. But we will be able to fight with the power of God on our side. If we look for fights on our own we may have to fight with our own strength and then we will be sure to lose.
The second word of caution is to fight as a team. As I mentioned earlier, the armor Paul is describing is designed for coordinated warfare. When 144 Roman soldiers went into battle in their formation they were very hard to defeat. A single soldier wearing that armor had much less chance of success. Combining and working effectively together made the unit a powerful force. When we work together with each other under God's direction we can be part of a powerful force as well!
Notice that the Roman soldier wore no protection on their back. This was by design. It helped motivate the soldiers to keep facing forward. If a Roman soldier dropped his shield and ran away from the enemy he was completely exposed. The same is true of us. When we are moving forward to engage the enemy we are well protected and equipped. When we are going away from the enemy by living lives that do not glorify God, we have no protection from attack. We are exposed and easily defeated. God has designed our spiritual armor so that it is only effective when we are in an obedient relationship with Him.
Now lets look at the spiritual armor we have been given. There is truth, righteousness, readiness that comes from the gospel of peace, faith, salvation, and the Word of God.
1. Truth is the basis for our life with God. We trust Him because He is truth. Satan fights with lies and sometimes these lies sound good. The devil will tell us that we are useless, unloved, or that we need something other than what God provides to bring satisfaction and joy to our life. Only the truth that comes from God can allow us to overcome these deceptions. We learn this truth from reading the Bible. So, READ YOUR BIBLE REGULARLY! Read it every day!
2. Righteousness Satan often attacks our hearts. He wants us to sin. 2 Corinthians 5:21 tells us that our righteousness comes from God. Only through God’s grace can we be worthy of being children of God and only through God’s grace can we overcome sin. This is our protection from Satan’s attack. When he reminds us of our weaknesses and failures we have a defense. We understand that we do not rely on our own righteousness but on the righteousness of Jesus. At the same time, living a holy life is important.
3. Readiness that comes from the gospel of peace Satan wants us to think that sharing the gospel of Christ is useless or hopeless. When we realize the mercy and love God has shown us we can have the proper motivation for wanting to share that gospel of peace with others.
4. Faith is what protects us when trouble and difficulties come. Nothing the devil attacks us with can hurt us if we have faith and trust that God will keep His promises. Of course that means we need to know what god's promises are. Reading the Bible increases our faith by teaching and reminding us what god has already promised. Then, when Satan attacks us we can hold God's promises our like a shield. No matter what the devil can throw at us the Bible covers it.
5. Salvation protects us from God’s wrath. Like a helmet, it also protects our minds from doubting God’s saving work in our life. Satan wants us to doubt our future but 1 Thessalonians 5:8 tells us that salvation is our hope for the future. When we are confident that we have salvation, nothing can shake our security in God.
6. The Word of God God’s Word is like a sword. We can use it to attack the enemy. Quoting scripture is one of the best ways to defeat the devil when he attacks you. Jesus always countered the devil's lies or people's heresy by quoting scripture. Hebrews 4:12 also says the Word of God can cut into us, cutting away the unhealthy parts of our life like a surgeon uses a scalpel to cut cancer out of a person.
Paul finishes his lesson on spiritual warfare by asking for prayer. He requests that the Ephesians will pray for him that he might be bold in continuing to attack the enemy. Even the strongest and most willing of us get tired of fighting at times. We need to pray for each other that God will refresh, encourage, and embolden us fight the good fight. Prayer is also how we can work together which I mentioned before is so important to effective spiritual battle.
Paul ends his letter to the Ephesians with a blessing. He proclaims peace, love, faith, and grace to all those who love Jesus. That should be our attitude as well. We need to have a heart to sincerely desire peace, love, faith, and grace to all believers. Even the ones who make you angry or treat you badly.