RQ: How does Christianity compare with Islam?
I just read a good book regarding this topic: "No God But One - Allah or Jesus: A former Muslim investigates
the evidence for Islam and Christianity" by Nabeel Qureshi (Zondervan paperback, 2016)
He noted that the Muslim credo is the shahada, "There is no God but Allah and Muhammad is his messenger" (p.24),
and that the way (sharia) to salvation is by obeying a code of laws (p.31). Notice how this coincides with the Hebrew shema,
"Hear, O Israel, the Lord our God is One" (Deut. 6:4, p.67) and the Mosaic Law (Deut. 6:6, 7:11, 8:1, etc.), and contrasts with the Christian
credo, "Receive Christ Jesus as Lord" (Col. 2:6) and the Gospel of love (Rom. 5:5, p.36).