“There is a mean streak in the Christian life. There is a violence. There is a militancy. But it is exactly the opposite of selfish violence against people. It is a violence against the “flesh” or against “the deeds of the body” – our flesh and our body. The Christian is not mean to others. He is mean to his own sinfulness – his own flesh… So to put to death the deeds of the body (as Romans 8:13 says) “by the Spirit” we must set our minds on “the things of the Spirit,” which we now see means: set your mind on the word of God in scripture. What makes this ring so true is the connection with Ephesians 6:17 where Paul says in our battle against evil we must “take the helmet of salvation, and the sword of the Spirit, which is the word of God.”

~ John Piper, How To Kill Sin-Part 3

The great thing that Piper leads us to see is that the glory of God in Jesus Christ is at stake in our daily, necessary and continual action of fighting and “killing sin”.  He says, “Jesus is glorified when we kill sin by the Spirit”.  Now, we hear that we live to glorify God and enjoy Him forever, but sometimes putting the ‘how’ into words is difficult.  The fighting of sin on a daily basis, and not only fighting but also killing it, is not just a little triumph in a Christian’s life, but one that glorifies Jesus.  This is a way we can daily live for His glory, not through our own will power, but by setting our minds on the Word of God and weilding The Sword against our flesh!