Claim 5: Jesus was a prophet of lslam. Islam teaches that Jesus' "gospel" (injil) was no different from the teaching of Old Testament prophets: one must worship Allah and obey his law. All the prophets or messengers have declared essentially the same thing, but Muhammad is the final and greatest prophet. However, this simple message of Jesus, the prophet of Allah, was lost and replaced by the Christian gospel, which is a perversion.
Our counterclaim has been made in the preceding arguments. The New Testament witness is far better established historically than the revisionism of the Qur'an. We know of no earlier documents concerning the nature of Jesus' person and message than the Gospels and the rest of the New Testament. In none of these books do we find a prophet of Allah who exhorts weak humans to know and live up to the divine law. Instead, the figure that illuminates every book of the New Testament is the Lord and Savior of a deeply flawed humanity (Mark 7:20-23), who never called people to work harder at obeying the law in hopes of salvation but rather called people to himself for the forgiveness of their sins and eternal life (John 3:16-18). Jesus' message was crucially about himself self as God's Son, Savior and Lord (John 3:16-18; 14:1-6; Matthew 11:27). Only Jesus perfectly obeyed the will of God through his virtuous life and obedient death on the cross. This matchless life was crowned by his resurrection, as Paul highlights at the commencement of Romans:
Paul, a servant of Christ Jesus, called to be an apostle and set apart for the gospel of God-the gospel he promised beforehand through his prophets in the Holy Scriptures regarding his Son, who as to his earthly life was a descendant of David, and who through the Spirit of holiness was appointed the Son of God in power by his resurrection from the dead: Jesus Christ our Lord. (Romans 1:1-4)
Douglas Groothuis. Christian Apologetics: A Comprehensive Case for Biblical Faith (pp 609-610)