Matteo 8:9

For I am a man under authority, having soldiers under me; and I say to this man, Go, and he goeth; and to another, Come, and he cometh; and to my servant, Do this, and he doeth it.

No self-important boasting here, but a modesty which makes his argument all the stronger, since it gives to Christ the honor which fitly belongs to Him. The centurion, for his own person, held a subordinate position, he was bound by his oath to the government and by all that this implied. And yet he had enough authority, in his official position, to give commands to his men, and in his station as head of the household, to demand work from his slave.

"The argument of the centurion seems to run thus: if I, who am a person subject to the control of others, yet have some so completely subject to myself, that I can say to one, Come, and he cometh; to another, Go, and he goeth; and to my slave, Do this, and he doeth it, how much more, then, canst Thou accomplish whatsoever Thou willest, being subject to no one, and having all things under Thy command. " Always there is the reference to the almighty power of Christ's word.