Deuteronomy 32:35

To Me belongeth vengeance and recompense; their foot shall slide in due time, at that time, when the foot would begin to be uncertain, when their fall would be imminent, then God would prove Himself the avenger, the rewarder, then the secrets with regard to their punishment, which He had kept hidden, would be revealed. For the day of their calamity is at hand, and the things that shall come upon them make haste; then the judgment, the vengeance of God, would strike Israel, bringing them to the verge of destruction.