Those who expend themselves in the ministry give evidence of their strong faith (See paragraph 13) In what ways is the preaching work a means to show faith?
اِجْتِهَادُنَا فِي ٱلْخِدْمَةِ دَلِيلٌ عَلَى إِيمَانِنَا ٱلْقَوِيِّ (‏ اُنْظُرِ ٱلْفِقْرَةَ ١٣ .‏ )‏