Each one in the congregation can be a source of encouragement to others (See paragraph 14) Aaron and Hur literally supported Moses ’ hands during a battle.
بِإِمْكَانِ كُلِّ شَخْصٍ فِي ٱلْجَمَاعَةِ أَنْ يَمْنَحَ ٱلتَّشْجِيعَ (‏ اُنْظُرِ ٱلْفِقْرَةَ ١٤ .‏ )‏