"But when Pharaoh saw that there was relief, he hardened his heart and would not listen to Moses and Aaron, just as the Lord had said." (Exodus 8:15)
Just when things get "good" again, Pharaoh hardens his heart to God's message through Moses and Aaron.
I hope I never do that--just go to God when trouble comes, and forget to go to Him as much when there is peace.
"Oh Lord, I know You are the all-powerful, Almighty God. May I, with Your help, praise and listen to You always--in troubled times as well as peaceful times. You deserve no less. Never let my heart be hard towards You or Your Word. I love You, Lord, forever and ever. Amen."