Paul is talking to the Ephesian brothers and exhorting them to ever be empowered in the might of His strength (Eph. 6:10). Most translations use the word strong, which might even be viewed as a noun.  The word strong in the Greek text is the verb endunamousthe, which means in+powered – hence, empowered. The verb is in the present tense, which means it is ever happening with continuous action. Also, the verb is in the passive voice, which means the subject (we) only receives action, but does not produce it. This declares that the empowerment ever comes from and is ever produced from the Lord Himself.   Again, Paul is clearly speaking to brothers, who have been Spirit birthed by the Holy Spirit, with His Son placed inside them for Spirit life.

You will never be able to fully handle the devil, the world, or circumstances and situations that you face with physical or fleshly means.  Our Father never intended that it would be that way.  Our Father placed Christ in you at the Spirit birthing, so that He would be our life, righteousness, strength and empowerment for every thing that we face in life.  Paul was clear in his declaration that, "I can do all things through Christ who strengthens me" (Phil. 4:13).  Christ is the divine source and expression of Spiritual strength and empowerment in us.  If we really understood the reality of that truth, we would never attempt to do anything aside from the Christ within us.  Our Father raised Christ up as our justification and savior.  Our Father has put the Person and Spirit of Christ in us to be our eternal life and expression in this world.  Paul declares, "It is no longer I who live but Christ lives in me" (Gal. 2:20).  This statement of revealed and liberating truth also declares, that it is no longer by my strength or power that I live, but by Christ who is my power and strength lives through me as me.  That is the reality of the Christ-life.