We are promised peace and joy, but as one were to see through the challenge of 1 Peter, Philippians, and even through James 1; this peace and joy flows from the inside out. As we set our affections on the things above and not the things upon the earth, and as we make the work of Christ in our lives our one desire this peace and joy flows through despite the difficulties of life.
2 Corinthians 12:9
And he said unto me, My grace is sufficient for thee: for my strength is made perfect in weakness. Most gladly therefore will I rather glory in my infirmities, that the power of Christ may rest upon me.
And so with this in mind, under the inspiration of the Spirit, Paul, sets forth for Timothy (and now us) the rule for our warfare. Paul writes challenging Timothy with another reason he has written this letter. “Yes, Timothy, I have written this letter to you, so that you can know how to lead the house of God to fulfil their purpose, but also so you will know how to keep doing it.”
If we want this place to fulfil its God given purpose, to be a place which points people to victory in Jesus, Paul exhorts us that we must have the right teaching, we must have the right testimonies, but he now goes on to challenge that we must fight right.