Brother Nathan H. Knorr declared that the principal work of all Christian overseers should be to help every Witness to be a regular house - to - house minister.
٨ ،‏ ٩ أَيُّ بَرْنَامَجِ تَدْرِيبٍ ٱبْتُدِئَ بِهِ سَنَةَ ١٩٥٣ ،‏ وَأَيَّةُ نَتَائِجَ أَسْفَرَ عَنْهَا ؟‏