Here's a talk I gave at the Plymouth University mission earlier this year. It was entitled "Three in One, have Christians got God right?" We invited the Islamic Society along, so it definitely had a Muslim audience in mind (though the talk is not exclusively pitched at that audience).
Here's the introduction...
Listen to two very different voices from very different times and places. They have one thing in common - a deep dislike of the Doctrine of the Trinity:
The first is from Thomas Jefferson:
“When we shall have done away with the incomprehensible jargon of the Trinitarian arithmetic, that three are one and one is three; when we shall have knocked down the artificial scaffolding, reared to mask from view the simple structure of Jesus; when, in short, we shall have unlearned everything which has been taught since his day, and got back to the pure and simple doctrines he inculcated, we shall then be truly and worthily his disciples.” Thomas Jefferson
The second is from the Quran:
Allah is one, he does not beget nor is he begotten and there is none like him. Surah 112
Do not say ‘Three’ Surah 4:171
No son did Allah beget, nor is there any god along with Him: (if there were many gods), behold each god would have taken away what he had created and lorded it over the others! Surah 23:91
Incredibly different times, places and cultures. But a real unity on this issue - they find the Trinity incomprehensible, if not blasphemous.
But tonight I want to say that the Trinity is the only thing that will make sense of your world, yourself and of God himself. You might think that the Trinity doesn't make sense. I want to say that without the Trinity life doesn't make sense.
Let me begin by asking you a question, What do you think was there 'in the beginning'?...
Powerpoint Slides (these would be helpful if you want to listen, or if you want a quick view of the talk)