3:86How will God guide a people who disbelieved after having believed, and had witnessed that the Messenger is true, and the clear proofs had come to them? God does not guide the unjust people.

3:106On the Day when some faces will be whitened, and some faces will be blackened. As for those whose faces are blackened: “Did you disbelieve after your belief?” Then taste the punishment for having disbelieved.

3:127He thus cuts off a section of those who disbelieved, or subdues them, so they retreat disappointed.

3:156O you who believe! Do not be like those who disbelieved, and said of their brethren who marched in the land, or went on the offensive, “Had they stayed with us, they would not have died or been killed.” So that God may make it a cause of regret in their hearts. God gives life and causes death. God is Seeing of what you do.