1 Peter 2:20

However, Peter hastened to distinguish between justifiable and unjustifiable suffering. He did not want his readers to rest comfortably if they were suffering for their own sins. Nevertheless if they were suffering for their testimony, or without having provoked antagonism by improper behavior, they could rest confidently because God approved their conduct even if other people did not. What God rewards is endurance in His will (cf. James 1:4).

"Although 1 Peter 2:20 has domestic servants particularly in mind, neither it nor anything that follows is limited to them. Their experience, whether actual or hypothetical, becomes a paradigm for the experience of all Christians everywhere in the empire. The position of a household slave was tenuous, subject to the character and moods of the owner. Despite the justice of the state, the position of Christians in the empire was also tenuous, subject to differing local conditions and sudden changes in the public mood." [Note: Ibid., p. 135.]