From an evangelical Christian perspective, the most-likely author of Matthew 16:15-16 is the apostle Matthew. According to tradition and historical evidence, Matthew was one of Jesus’ original twelve disciples and the author of the Gospel of Matthew. This Gospel contains detailed accounts of Jesus’ ministry, teachings, death, and resurrection.

In Matthew 16:15-16, Peter confesses Jesus as the Son of God, saying, “You are the Messiah, the Son of the living God.” This confession is a pivotal moment in the Gospel and affirms Jesus’ true identity as the Son of God.

Evangelical Christians believe that the Bible is the inspired and authoritative word of God, and that the authors of the Gospels were guided by the Holy Spirit in their writing. Therefore, Matthew 16:15-16 is considered to be a reliable and significant testimony to the divinity of Jesus Christ. It is a foundational passage for the Christian faith, affirming Jesus as the unique Son of God and the promised Messiah.