I recall one night, sitting in my home after dinner. My wife had prepared a wonderful Iranian meal and we were joined by an Iranian friend of ours. He was very passionate about God and Islam.
We were talking about God and he was passionately and proudly talking about how strong his God is. He explained the power of his God, how he created everything, how he is all-powerful, and does whatever he wants. He also made it clear that we humans are but dust. He then, looked at me, with a look of victory, as if he had just blown my mind about his God, and there was no way my God could compare. I responded by saying, “You know, I believe all those things about God as well. The Bible teaches that God is all-powerful, created the world out of nothing, and does all that pleases him.” I then said, “but my God is not just that, my God is good, my God loves, my God cares for people, my God created us out of dust, but see us as his treasured creation, and through Jesus, his sons and daughters.” I then asked him, “is your God like this?” To his displeasure, he said, “I don’t know.”
A big difference between the God of the Bible and the God of the Quran is not their power or transcendence, but that one is relational, and another is seemingly unknowable, a form of agnosticism.
We need to tell Muslims how good our God is. Maybe you are afraid to engage Muslims out of fear of not knowing what to say. Maybe you are worried to lose a debate and make Christianity look bad. But if you know the basic truths about God, you will speak to your Muslim neighbor's heart. If you know God is a Father, tell them about it. If you know your God loves, tell them about it and how you have experienced his love. As if your child was telling his friend about you, tell Muslims about our heavenly Father