This is a symbol of baptism, which now saves you-- not the putting away of the filth of the flesh, but the answer of a good conscience toward God, through the resurrection of Jesus Christ,
Persecution cannot really harm those who are eager to please God, because with such people persecution always results in greater spiritual blessing (13). Because they love what is right they may be persecuted by those who love what is wrong, but to suffer for such a reason is a cause for joy, not sorrow. If people are devoted to Christ and are always ready to give others an explanation for their devotion, they will not fear their persecutors (14-15). They should also try to avoid all forms of wrongdoing. Perhaps their enemies will see that they are persecuting without cause, and so feel ashamed of themselves (16-17).As Peter thinks about those who suffer for doing good, he is reminded of the perfect example, Jesus Christ. The one who was perfect died for sinners to bring them to God. In his body he suffered the penalty for their sins - death. But he triumphed over death. His spirit, instead of being bound by those forces that lead to eternal condemnation, entered into fuller life. He then went to the place where evil spirits are imprisoned awaiting final judgment and announced his victory (18-19).