The expression “the deep things of God ” includes the understanding of God’s wisdom that is revealed to Christians by holy spirit but is obscured to others.
إِنَّ عِبَارَةَ « أَعْمَاقِ ٱللهِ » تَشْمُلُ فَهْمَ « حِكْمَةِ ٱللهِ » ٱلَّتِي كُشِفَتْ لِلْمَسِيحِيِّينَ بِوَاسِطَةِ ٱلرُّوحِ ٱلْقُدُسِ لكِنَّهَا حُجِبَتْ عَنْ أَعْيُنِ ٱلْآخَرِينَ .‏