Joash, A Righteous King Rules and is Slain

Today I read 2 Kings 12 where Joash reigns for a little while, and he is a righteous king.  It is really sad to me however that he is killed and another reigns in his stead.  I know that in this life the righteous are not always given their just rewards right off the bat, however it is a little frustrating that more righteous men and women don't get an easy life.  Jesus said that whosoever will lose his life for His sake will find it.  He did not say it would be found in THIS life.  Just that it would be found.  I'm sure that if Joash was as righteous as the scriptures state he was, then he received his just reward when he passed on to the next life.  That is all we can really hope for, those of us who live the Gospel.  Until tomorrow.