Al-Anfal 8:55 ان شر الدواب عند الله الذين كفروا فهم لا يومنون ٥٥

Striking Hard against Those Who disbelieve and break the Covenants

Allah states here that the worst moving creatures on the face of the earth are those who disbelieve, who do not embrace the faith, and break promises whenever they make a covenant, even when they vow to keep them,