“ Presiding over ” the congregation involves more than just teaching. The same expression is used at 1 Timothy 3: 4.
لِذلِكَ ،‏ فَإِنَّ ٱلتَّعْدِيلَ ٱلْأَخِيرَ حَوْلَ ٱعْتِمَادِ ٱلتَّسْمِيَةِ « مُنَسِّقِ هَيْئَةِ ٱلشُّيُوخِ » يُسَاعِدُنَا أَنْ نَعْتَبِرَهُمْ جَمِيعًا أَعْضَاءَ جَسَدٍ مُوَحَّدٍ .‏