That would include their speaking to others, to outsiders, about their faith in Jesus and their wonderful hope.
وَشَمَلَ ذلِكَ إِخْبَارَ مَنْ هُمْ خَارِجَ ٱلْجَمَاعَةِ بِإِيمَانِهِمْ بِيَسُوعَ وَرَجَائِهِمِ ٱلرَّائِعِ .‏