Amazement came (egeneto qambo). Mark has eqambhqhsan. They spake together one with another (sunelaloun pro allhlou). Imperfect indicative active and the reciprocal pronoun. Mark has simply the infinitive sunzhtein (question). For (oti). We have here an ambiguous oti as in Mark 1:45 , which can be either the relative "that" or the casual oti "because" or "for," as the Revised Version has it. Either makes good sense. Luke adds here dunamei (with power) to Mark's "authority" (exousian). And they come out (exercontai). So Luke where Mark has "and they obey him" (kai upakouousin autwi).