What Bible account illustrates the importance of being zealous and wholehearted in serving God?
وَلِإِبْرَازِ أَهَمِّيَّةِ ٱلْغَيْرَةِ فِي خِدْمَةِ ٱللهِ ،‏ لَاحِظْ مَا حَدَثَ مَعَ ٱلْمَلِكِ ٱلْإِسْرَائِيلِيِّ يَهُوآشَ .‏