For years I have been using the Gospel John when doing evangelism in Muslim communities. Each year I can see more advantages to doing so. For the start it explains about how the Lord Jesus is the Word of God.
I have often used chapter 1 and chapter 14 when explaining the Trinity to Muslims. There is a part in this that I think needs to be relooked over as I imagine that many westerners have overlooked this - as I have for many years.
"Jesus said to him, I am the Way, and the Truth, and the Life. No one comes to the Father except through me. "
Let us draw our attention to the words "the Truth". In some translations the word Truth is not capitalized. This is something that should be revised, as "The Truth" is a title for God. Jesus is in this verse giving Himself the same title that is given alone to God.
There was in 922 a man who was crucified for calling himself "The Truth". Muslims claimed it to be blasphemy, as did / do the Jews.
Following this verse, it seems that Philip - just didn't quite get it.
"If you had known me, you would have known my Father also. From now on you do know him and have seen him. "
Then Philip responded in a way that must have laced with disbelief and sarcasm.
"Philip said to him, Lord, show us the Father, and it is enough for us."
Jesus said to him, Have I been with you so long, and you still do not know me, Philip? Whoever has seen me has seen the Father. How can you say, Show us the Father? Do you not believe that I am in the Father and the Father is in me? The words that I say to you I do not speak on my own authority, but the Father who dwells in me does his works. Believe me that I am in the Father and the Father is in me, or else believe on account of the works themselves.
When speaking to Muslims it is important to let them read these things in context. I have from time to time sat with Muslims and primarily just gave them chapters to read at a time, for EX John 1 & 14.