1 Peter 4:1-2
We are commanded to arm ourselves with the same mindset and attitude of Christ. He had the entire host of heaven at His disposal yet never lifted a finger in His own defense! He threw the moneychangers out of the Temple, not because they were threatening Him, but because they were desecrating His Father's house. When it came to His own security, He always chose to remove Himself from the situation—until His earthly ministry was over, when He humbly submitted to the most unfair treatment that has ever been imposed on a human being.
Paul tells us in Ephesians 6:10 to "be strong in the Lord and in the power of His might." In the next several verses, He shows that we are involved in a war, one in which no sword, gun, or any other human weapon can help us. Our battles are spiritual battles, and even when those battles involve human instruments, our articles of defense are still spiritual: truth, righteousness, the gospel of peace, faith, salvation, and of course, the "sword" of the Spirit—the Word of God (verses 14-17). This is the sword that we should carry with us constantly and look to for defense.
David C. Grabbe
Living By the Sword