Promise and fulfillment in the Bible - Conclusion
The most important difference between Quranic abrogation and Biblical promise and fulfillment is the person and work of Jesus Christ. The Old Testament points to him, and he fulfills our hopes and expectations. He anchors the fourteen hundred years of progress of revelations from the Old to the New Covenants in his own person, creating stability.
The Quran’s abrogation, on the other hand, is not anchored in the same way, but it depends on shifting sands of circumstances that are wind-blown in a short time. This creates instability and needless unpredictability and capriciousness.