By having a full share in the preaching work, you show that you are cooperating with that spirit.
فَوَحْدَهُ رُوحُ ٱللهِ ٱلْقُدُسُ قَادِرٌ عَلَى تَقْوِيَتِنَا لِلتَّغَلُّبِ عَلَى ٱلْعَقَبَاتِ ٱلْمُثَبِّطَةِ وَفِعْلِ أُمُورٍ يَسْتَحِيلُ عَلَيْنَا إِنْجَازُهَا بِقُوَّتِنَا ٱلْخَاصَّةِ .‏