Finally, be strong in the Lord and in his mighty power. Put on the full armor of God, so that you can take your stand against the devil’s schemes. For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms.
Paul, The Apostle of Grace
In Ephesians 6:10-11, Paul begins bringing his letter to the Ephesian believers to a close. He instructs them to "be strong in the Lord and his mighty power" so they can take their stand against the "devil's schemes". For us to take our stand against the devil's schemes, we must first know what the mighty power of the Lord is that makes us strong. So what is the mighty power of the Lord we are to be strong in?
Context is everything when seeking to properly interpret and apply Scripture. So to understand the mighty power of the Lord that we are to be strong in, we must have properly interpreted Paul's entire letter to the Ephesians, since Ephesians 6 follows Ephesians 1-5.
The mighty power of the Lord Paul is writing about is the power of God's grace freely given to us in Jesus through his blood (Ephesians 1:1-19). Paul compares the power of God's grace to the power of the resurrection (Ephesians 1:20). The mighty power of the grace of God given to us freely in the Lord is the spiritual blessings of Ephesians 1. God the Father, through Jesus, has made us holy and blameless in his sight, without spot or wrinkle. We have been redeemed or forgiven of all our sins, made alive with Jesus, and seated with Jesus in heavenly places. This act of grace by God is received by faith and is what Paul refers to as being saved from the wrath of God because of his great love and mercy (Ephesians 2).
Paul's prayer for the believers in Ephesus is for them to be awakened in their hearts to how glorious the Father and his grace are. This awakening in their hearts to the Father's goodness and grace would become a strong power within them, as mighty as the resurrection of Jesus! In the same way, the awakening in our hearts of how great the Father and his grace are will become a strong power within us, enabling us to take our stand against the devil's schemes.
Paul continues to teach in Ephesians about the mighty power of the Lord when he teaches about the Spirit giving revelation to us in our inner being about the height, depth, width, and length of the love of Jesus for us demonstrated at the cross (Ephesians 3:14-19). He then prays we would be rooted and established in the love of Jesus. This revelation of the love of Christ in our hearts and being rooted and established in his love will become powerful within us (Ephesians 3:16), filling us with the fullness of God himself, all of God's power!
The power of God's grace and love within us will then do immeasurably more in us than we could ever ask or imagine (Ephesians 3:20).
This is the power Paul is referring to in Ephesians 6:10-11 that we are to stand in. Standing in the goodness of our Father's love and grace that he has freely given to us in Jesus makes us strong. The love and grace of God which has been freely given to us in Jesus is the full armor of God by which we are made strong to take our stand against the devil's schemes.
Today, don't focus on taking your stand against the devil's schemes, rather focus on the goodness of the Father's love and grace that he has freely given to you in Jesus which becomes a mighty power in you that makes you strong so that you can take your stand against the devil's schemes.