The most likely author of the book of 1 Peter, including the passage 1 Peter 1:18-19, is the Apostle Peter. From an evangelical Christian perspective, Peter is viewed as one of Jesus Christ’s closest disciples and one of the original twelve apostles. He is often regarded as the leader of the early Christian church.

Here are some key points about Peter as the author of 1 Peter:

1. **Apostolic Authority**: Peter’s status as an apostle gives him significant authority in the early Christian community. Evangelicals believe that the letters he wrote carry the weight of apostolic teaching and guidance.

2. **Historical Context**: The letter is addressed to believers in various regions of Asia Minor (modern-day Turkey) who were facing persecution and suffering for their faith. This context is important because Peter encourages them to remain steadfast and offers theological insights into suffering, salvation, and the hope of Christ.

3. **Theological Emphasis**: In 1 Peter 1:18-19, the apostle emphasizes the redemptive nature of Christ’s sacrifice, which is a central theme in evangelical theology. The passage reads, “For you know that it was not with perishable things such as silver or gold that you were redeemed from the empty way of life handed down to you from your ancestors, but with the precious blood of Christ, a lamb without blemish or defect.” This highlights the belief in Christ’s atonement and the idea that believers are redeemed through His sacrifice.

4. **Personal Experience**: Peter’s firsthand experience with Jesus adds depth to his writings. As someone who witnessed Christ’s ministry, death, and resurrection, his letters reflect a combination of personal testimony and theological insight.

5. **Character and Transformation**: The journey of Peter from being a fisherman to becoming a foundational figure in the church is often emphasized in evangelical teaching. His transformation, including moments of failure and restoration, serves as an encouragement for believers to rely on God’s grace.

Overall, from an evangelical perspective, 1 Peter, traditionally attributed to the Apostle Peter, is considered an important scripture that speaks to the faith, suffering, and hope of believers, grounded in Christ’s redemptive work.