Salvation comes, not by baptism, but by faith in Jesus Christ whose resurrection and ascension testify to God"s acceptance of and satisfaction with His sacrifice ( 1 John 2:2). 1 Corinthians 1:17 clarifies that baptism is not required for justification, and Acts 10:47 shows that baptism is a step of obedience for Christians. God has subjected all things, even the powers behind our persecutors, to Jesus Christ because of His death and resurrection (cf. 1 Peter 3:18). The fact that Jesus Christ now rules over the church does not mean that He is ruling on the throne of David over the kingdom of David. [1] "Through the resurrection" continues the thought that Peter began in 1 Peter 3:18 from which he digressed in 1 Peter 3:19-21 b. [source][source][source]
Jesus Christ"s ultimate victory in spite of temporary persecution should be an encouragement to any suffering disciple of the Savior. 1 Peter 3:18 describes the saving work of Jesus Christ. 1 Peter 3:19-20 refer to His ministry of proclaiming good news to those destined for judgment, which ministry we in our day must continue faithfully, as Noah did in his. 1 Peter 3:21 stresses the importance of confessing Christ publicly in baptism by reminding us of what baptism does and what it does not do. 1 Peter 3:22 reminds us of our ultimate vindication and destiny. [source][source][source]
There is a difference between this reference to Jesus" sufferings and the one in 1 Peter 2:21-24. In the former case Peter used Jesus as an example of how to respond to suffering. In this case he showed that as a result of Jesus" sufferings we can be sure of ultimate triumph, and this gives us confidence as we suffer. [source][source][source]