If the Watchtower Library or Watchtower ONLINE LIBRARY is available in his language, you can show him how to use it to answer Bible questions.
فَحِينَ يُجَرِّبُ تِلْمِيذُكَ هٰذِهِ ٱلْأَسَالِيبَ ٱلْمُخْتَلِفَةَ ،‏ يُصْبِحُ دَرْسُهُ ٱلشَّخْصِيُّ لِلْكِتَابِ ٱلْمُقَدَّسِ مُمْتِعًا .‏