The method of preaching from house to house has its basis in the Scriptures. When Jesus sent forth the apostles to preach, he instructed them: “Into whatever city or village you enter, search out who in it is deserving. ” How were they to search for deserving ones?
لَقَدْ أَوْصَاهُمْ يَسُوعُ أَنْ يَذْهَبُوا إِلَى بُيُوتِ ٱلنَّاسِ قَائِلًا لَهُمْ :‏ « حِينَ تَدْخُلُونَ ٱلْبَيْتَ سَلِّمُوا عَلَى أَهْلِهِ .‏