Sarah is a good example of such a woman. We see her attitude of respect in the way she spoke to Abraham ( 1 Peter 3:2). "Lord" sounds servile to us, but an equally acceptable translation of the Greek word is "sir." The point is that she verbally expressed her submission to him in a way that was appropriate in her culture. [1] Women who behave as Sarah did show that they are her daughters in spirit. Such behavior demonstrates trust in God and holiness, separation from sin to God"s will. [source][source][source]
"His [2] argument is from the greater to the lesser: if Sarah "obeyed" Abraham and called him "Lord," the Christian wives in Asia should at least treat their husbands with deference and respect." [3][source]
"Without being frightened by any fear" ( 1 Peter 3:6) is not a condition for becoming a true daughter of Sarah in addition to doing what is right. It is rather the consequence of adopting the behavior that Peter advocated. If a Christian wife was suffering for her faith because of her conduct, she could gain great confidence by doing what Peter counseled and what Sarah practiced. She could understand that any suffering that came her way was not a result of her sinful behavior but in spite of her godly behavior (cf. 1 Peter 2:20; Proverbs 3:25). [source][source][source]
"The sense is that these Christian women are to let nothing terrifying frighten them from their course. Pagan women may disdain and insult them because they have adopted a nobler wifehood, they yet remain unafraid. Pagan husbands may resent their Christianity; this, too, does not frighten them." [4][source]