It is as John wrote: “We are under obligation to show hospitality to such ones, so that we may become fellow workers in the truth. ” ​ — 3 John 8.
قَالَ يُوحَنَّا :‏ « إِنَّهُمْ مِنْ أَجْلِ ٱسْمِهِ خَرَجُوا » .‏