As we fight the war within our hearts we will inevitably live with the results that play themselves out in our exterior lives. We know that the state of our interior lives will affect our ability to live as Christ to the world. If on the inside we are crude, selfish, immodest, and violent, our exterior will suffer from it causing us to struggle to do good or, if we manage to do good by sheer will, only do it begrudgingly or dishonestly. But if our interior life is ordered we will find that doing the right thing is not only effortless but invigorating! This is the battle then; to do what is right and avoid what is evil. We read about the arms and armaments for this battle in Ephesians:
The Whole Armor of God
10 Finally, be strong in the Lord and in the strength of his might. 11 Put on the whole armor of God, that you may be able to stand against the wiles of the devil. 12 For we are not contending against flesh and blood, but against the principalities, against the powers, against the world rulers of this present darkness, against the spiritual hosts of wickedness in the heavenly places. 13 Therefore take the whole armor of God, that you may be able to withstand in the evil day, and having done all, to stand. 14 Stand therefore, having girded your loins with truth, and having put on the breastplate of righteousness, 15 and having shod your feet with the equipment of the gospel of peace; 16 above all taking the shield of faith, with which you can quench all the flaming darts of the evil one. 17 And take the helmet of salvation, and the sword of the Spirit, which is the word of God. 18 Pray at all times in the Spirit, with all prayer and supplication. To that end keep alert with all perseverance, making supplication for all the saints, 19 and also for me, that utterance may be given me in opening my mouth boldly to proclaim the mystery of the gospel, 20 for which I am an ambassador in chains; that I may declare it boldly, as I ought to speak.