Luke 7:8
For I myself am a man under authority, with soldiers under me. I tell this one, go, and he goes; and that one, come, and he comes. I say to my servant, do this, and he does it — the centurion's authority argument: he understands authority because he lives within a hierarchy of authority. Under authority himself, he commands those under him, and they obey without question. His insight is that Jesus operates in the same kind of authority structure — Jesus speaks and the disease obeys, just as the centurion speaks and his soldiers obey.