What is the ruling on one who reviled Allah Almighty and then repented and felt extreme remorse, and how will he stand before Allah with this sin, and what will he do if Allah honors him with His vision morning and evening?

A repentant believer may continue to feel shame for a sin even after repentance and its acceptance. This shame is desirable if it motivates him to work and strive out of awe of God. The repentant person may be questioned about his sin, and God may make him stand accountable for it on the Day of Resurrection, then forgive him for it. Sins may even be transformed into good deeds after being brought forth. As for Paradise, there is no sorrow in it, so if a believer remembers his sins there, he will not grieve.