"So Jotham became mighty, because he prepared his ways before the LORD his God." 2 Chronicles 27:6
Compared to 2 Chronicles 12:14, "And [Rehoboam] did evil, because he prepared not his heart to seek the LORD."
Too often, we try to be "accidental Christians" -- assuming that we will do right just because God is good, or because we're saved. But doing right (even for the believer) takes work and preparation - purposeful living. How much time do we spend daily, preparing our hearts and ways before God? If we don't spend any time seeking God, why do we wonder when He withholds blessings, or if we fall?
There is no better way to start our day than in praise to the Lord -- whether in song or in gratefulness to Him.
He sought God...with all his heart...and prospered. His goal was not just following the law and doing good works -- his heart sought God. It is easy to get so pulled into doing and checking off my "spiritual checklist" that I stop seeking God and just follow the rules.
"And when they brought out the money that was brought into the house of the LORD, Hilkiah the priest found a book of the law of the LORD given by Moses." 2 Chronicles 34:14
If Josiah hadn't been faithful in doing what he knew to do, they would not have "stumbled" on God's law and, by it, further led to do right. It never hurts to examine daily: am I doing that which I know to do?