Peter had earlier mentioned “the will of God” in 1 Peter 2:15 and 1 Peter 3:17. God leads the lives of his people according to his eternal plan. That plan is revealed in part through commands he gives to his people (see on 1 Peter 2:15). Obedience to his commands may result in suffering at the hand of Gentiles who ridicule God’s principles (see on 1 Peter 3:17). Nevertheless, the will of God revealed in Scripture is the guiding motif for those who are born again. In living by the (revealed) will of God, Christians demonstrate that we live for God’s will. So the trajectory of the Christian’s life diverges in an ever-increasing manner from the habits he had in his preborn past. With this verse, then, Peter is pointing to the dynamics of growth that should characterize the life of the Christian in the period between conversion and promotion to glory (1 Peter 1:13).
2 so as to live for the rest of the time in the flesh no longer for human passions but for the will of God.