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,
Now here Peter goes back and just quotes a portion out of the psalms. And again, it is interesting to me because it shows us Peter's good working knowledge of the Scriptures. And as he is writing in his own little exhortations here, he goes back and he quotes a portion of Psalm 34 , about three or four verses out of Psalm 34 . "He that would love life, and see good days,"