Protestant Christians prize the authority of scripture and a personal relationship with God — both deeply resonant with Islam. Muslims believe the Qur'an is God's preserved, final revelation, and that every believer speaks to God directly, with no intermediary, nearer to us than we realise.
Conversations flow naturally around the nature of God's oneness (Qur'an 112:1-4), the identity and mission of Jesus as the Messiah (Qur'an 19:30-36), and the balance of sincere faith with righteous action resting on God's mercy. Islam presents itself not as a rival to the message of Jesus, but as a return to the worship of the One God he served (Qur'an 3:64).