As Citizens of Heaven, we arm ourselves with the resolve of Christ in suffering justly for doing good and therefore we live differently than the world.
1- Arm yourself with the resolve of Christ (v. 1): Be willing to suffer rather than give into sin.
2- To Arm yourself with Christ is to make war against earthly desires (v. 2-3): Peter talks about sensuality, lusts, drunkenness, carousing, drinking parties, and abominable idolatries.
3- Don’t be surprised when the world slanders you, God is your Judge and theirs. (v. 4-6): The world won’t understand when you depart from them to pursue Christ, so don’t worry about it.