After listening to God’s declaration, the king of Nineveh and his subjects performed a series of acts. What is the nature of their behavior and actions? In other words, what is the essence of the entirety of their conduct? Why did they do what they did? In God’s eyes they had sincerely repented, not only because they had earnestly entreated God and confessed their sins before Him, but also because they had abandoned their wicked conduct. They acted this way because after hearing God’s words, they were incredibly frightened and believed that He would do as He said. By fasting, wearing sackcloth and sitting in ashes, they wished to express their willingness to reform their ways and refrain from wickedness, to pray for Jehovah God to restrain His anger, to entreat Jehovah God to withdraw His decision as well as the catastrophe about to befall them. Through examining all of their behavior we can see that they already understood that their previous wicked acts were detestable to Jehovah God and that they understood the reason why He would soon destroy them. For these reasons, they all wished to utterly repent, to turn away from their evil ways and abandon the violence in their hands. In other words, once they became aware of Jehovah God’s declaration, each and every one of them felt fear in their hearts; they no longer continued their wicked conduct nor continued to commit those acts hated by Jehovah God. Additionally, they entreated Jehovah God to forgive their past sins and to not treat them according to their past actions. They were willing to never again engage in wickedness and to act according to Jehovah God’s instructions, if only they would never again infuriate Jehovah God. Their repentance was sincere and thorough. It came from the depths of their hearts and was not feigned, nor was it temporary.
Once the people of Nineveh, from the supreme king to his subjects, learned that Jehovah God was angry with them, every single one of their actions, the entirety of their behavior, as well as every one of their decisions and choices were clear and plain in the sight of God. God’s heart changed according to their behavior. What was God’s frame of mind at that very moment? The Bible can answer that question for you. As is recorded in Scripture: “And God saw their works, that they turned from their evil way; and God repented of the evil, that he had said that he would do to them; and he did it not.” Although God changed His mind, there was nothing complex about His frame of mind. He simply went from expressing His anger to calming His anger, and then decided not to bring the catastrophe upon the city of Nineveh. The reason why God’s decision—to spare the Ninevites from the catastrophe—was so swift is that God observed the heart of every person of Nineveh. He saw what they held in the depths of their hearts: their sincere confession and repentance for their sins, their sincere belief in Him, their deep sense of how their wicked acts had enraged His disposition, and the resulting fear of Jehovah God’s impending punishment. At the same time, Jehovah God also heard the prayers from the depths of their hearts entreating Him to cease His anger against them so that they might avoid this catastrophe. When God observed all these facts, little by little His anger disappeared. Regardless of how great His anger had previously been, when He saw the sincere repentance in the depths of these people’s hearts His heart was touched by this, and so He could not bear to bring the catastrophe upon them, and He ceased to be angry at them. Instead He continued to extend His mercy and tolerance toward them and continued to guide and supply them.
from “God Himself, the Unique II”