As many as receive you not (osoi an mh decwntai uma). Indefinite relative plural with an and present middle subjunctive and the negative mh. Here Matthew 10:14 has the singular (whosoever) and Mark 6:11 has "whatsoever place." For a testimony against them (ei marturion ep autou). Note use of ep autou where Mark 6:11 has simply the dative autoi (disadvantage), really the same idea.