In principle, what Psalm 71: 18 says about instructing “those who are to come ” could also be applied to the other sheep, who have received instruction from God’s anointed ones.
١٨ ،‏ ١٩ (‏ أ )‏ أَيَّةُ مَعْلُومَاتٍ قَيِّمَةٍ يُمْكِنُ لِخُدَّامِ يَهْوَه ٱلْكِبَارِ ٱلسِّنِّ أَنْ يَنْقُلُوهَا ؟‏