What is an example of ingratitude as shown in the novel, When the Beginning Began?

One form of ingratitude is envy, as shown by Moon, which wishes to outshine Sun. Another form is the desire to be better than others. When Mouse wants to be exalted above Cat, God ends their friendship and makes Mouse prey for Cat. Envious Snake is brought low for his spiteful behavior. Satan and his followers are unable to see the glory in God's Creation because of their envy of God. On the other hand, most animals take pleasure in parading for God and the angels, and angels such as Sara are delighted by what God has made.