Jesus himself taught his disciples many truths that were new to them. They still had much to learn, however.
(‏ يو ١٤ :‏ ٢٦‏ )‏ يَتَّضِحُ إِذًا أَنَّ ٱلرُّوحَ ٱلْقُدُسَ كَانَ سَيَعْمَلُ كَمُعَلِّمٍ وَمُذَكِّرٍ .‏