The Cow - 2:100 Whenever they made a treaty, did not a group of them break it? Most of them do not believe.
What is the punishment for those who break the covenant with Allah?
The Family Of Imran/3:77 Those who exchange their pledge to Allah and their oaths for a small price have no share in the Hereafter. Allah will not speak to them, nor will He look upon them on the Day of Resurrection, nor will He purify them. For them is a painful torment.

The Repentance/9:77 Because they broke their promise to Allah and lied, He put hypocrisy in their hearts until the Day when they will meet Him.

The Thunder/13:25 Those who break their covenant after their promise to Allah, those who do not unite what Allah has commanded to be united, and those who make mischief in the earth have deserved the curse and for them is an evil consequence.

The Spoils of War/8:55 The worst of creatures with Allah are the disbelievers; they do not believe.
The Spoils of War/8:56 They are the ones with whom you made a treaty, but they always break it. They do not act virtuously.

The Coalition/33:15 They had promised Allah before that they would not turn their backs and flee. Every promise made to Allah will be questioned.

The Victory/48:10 Those who pledge allegiance to you have pledged allegiance to Allah. Allah´s hand is upon their hands. Whoever breaks his pledge breaks it against himself. And whoever fulfills his promise to Allah, We shall give him a great reward.