Just prior to the establishment of the new covenant, Jesus gave two significant commands. One dealt with the preaching work.
كَانَ إِسْرَائِيلُ ٱلرُّوحِيُّ سَيَحْصُدُ فَوَائِدَ كَبِيرَةً مِنَ ٱلْإِرْشَادِ ٱلَّذِي زَوَّدَهُ ٱللهُ مِنْ خِلَالِ ٱبْنِهِ .‏