Maybe we should ask Jack Miles, who wrote the Pulitzer Prize-winning “God: A Biography” about all this. He says….
A friend asked me, what was the biggest surprise you discovered in writing the book? I said, Allah is more merciful than Yahweh. Understand, we’re talking about the same being, but the presentation (in the Quran) stresses not just Allah’s mercy, but also the themes of repentance and forgiveness. I should say, these episodes that involve biblical material probably are no more than a quarter or a fifth of the overall material in the Quran. So, my comment that Allah is more merciful than Yahweh is confined to that portion of the Quran…I’ll give two examples. Adam and Eve in the Quranic version immediately repent of their sin and throw themselves on the mercy of Allah and Allah forgives them on the spot. They do have to leave paradise, but if they live a good life then at the Last Judgment they will ascend to the heavenly garden. Adam and Eve in the Bible never do repent…Similarly, the Israelites, just after crossing the Red Sea, create the Golden Calf and God decides to exterminate them as punishment. Moses dissuades him from that, but still there’s horrendous violence imposed on them, a mass slaughter of the lead offenders. In the Quran, the Israelites immediately repent and Allah forgives them.
And there we have it: apparently the Jews worship a nastier Supreme Being than the Muslims.