3:23Have you not considered those who were given a share of the Scripture, as they were called to the Scripture of God to arbitrate between them; then some of them turned back, and declined?

3:77Those who exchange the covenant of God, and their vows, for a small price, will have no share in the Hereafter, and God will not speak to them, nor will He look at them on the Day of Resurrection, nor will He purify them. They will have a painful punishment.

3:176And do not be saddened by those who rush into disbelief. They will not harm God in the least. God desires to give them no share in the Hereafter. A terrible torment awaits them.