My recent studies of Ephesians have marked me deeply. It may be that the most important application to my life has been in the awareness of Satan’s work around me and, on that basis, learning how to stand firm. Ephesians 6 is a powerful call to be aware of the enemy and his army; it teaches that there is an enemy who devotes his entire existence to the destruction of God’s work and God’s people. Every Christian is engaged in battle against him.
In his grace the Lord gives spiritual armor to equip us to fight this spiritual battle. What is God’s armor? Paul lists six things, six pieces of armor that allow you to stand in this battle.
Stand by arming yourself with truth. You arm yourself by fastening on the belt of truth. You arm yourself with truth by knowing the facts of what is true, by confessing the doctrine of the Bible. Once you know what is true and are growing in your knowledge of it, you practice the truth. You live your life in a way that shows that you actually believe these things and that they really do matter. Truth is not merely abstract facts, but the way we live our lives. If you don’t live like it’s true, you don’t really believe that it’s true! So arm yourself for battle, arm yourself to defeat Satan, by knowing what is true and living out that truth.
Stand by arming yourself with righteousness. You arm yourself by fastening on the breastplate, the body armor, of righteousness. You put on righteousness when you put on your new identity in Christ. You put on righteousness when you know and believe and proclaim that you are no longer a slave to sin, you are no longer dead in sin, but are now alive in Christ. When you became a Christian you were given a whole new identity and now you are now constantly battling to be who you are, to put on this new identity. Satan often calls this identity into question, trying to convince you that you still belong to him. But you can turn back his attacks by embracing and believing the truth that you belong to Christ.