What aspect of the good news did Paul refer to so often in that book? Why is that particular good news vital?
فَإِلَى أَيِّ جَانِبٍ مِنَ ٱلْبِشَارَةِ أَشَارَ مِرَارًا وَتَكْرَارًا فِي هذَا ٱلسِّفْرِ ؟‏