19 who sets their heart on seeking God—the LORD, the God of their ancestors—even if they are not clean according to the rules of the sanctuary.”

Read 2 Chronicles 30:19 Using Other Translations

That prepareth his heart to seek God, the LORD God of his fathers, though he be not cleansed according to the purification of the sanctuary.
who sets his heart to seek God, the LORD, the God of his fathers, even though not according to the sanctuary's rules of cleanness."
who decide to follow the LORD, the God of their ancestors, even though they are not properly cleansed for the ceremony.”