Exodus 8:15 But when Pharaoh saw that there was respite, he hardened his heart, and hearkened not unto them; as the LORD had said.
Pharaoh softens when things get bad enough. He seems to begin to give in and decide to obey God. As soon as the problem is gone so is his decision to do right. Things got better and he immediately decided that he would go back to disobeying.
That seems to be the story of most people. I know it affects me more than it should. I will really pray and seek the Lord when I am in desperate need. Then my prayer life will falter after that. I act like Pharaoh too many times.
I want to love and honor God all the time. I do not want to be constantly changing. I want to be His man, all the time!