That is what Joshua was told to do when he became Moses ’ successor: “Be courageous and very strong to take care to do according to all the law that Moses my servant commanded you....
فَقَدْ قَالَ لَهُ يَهْوَهُ :‏ « تَشَجَّعْ وَتَقَوَّ جِدًّا لِتَحْرَصَ عَلَى ٱلْعَمَلِ بِحَسَبِ كُلِّ ٱلشَّرِيعَةِ ٱلَّتِي أَمَرَكَ بِهَا مُوسَى خَادِمِي .‏ .‏ .‏ .‏