The centurion answered, and said
This, according to ( Luke 7:6 ) was said by his friends in his name, when he understood that Christ had agreed to come to his house, with the elders of the Jews, he first sent to him; and after he was actually set out with them, and was in the way to his house; who, conscious of his own unworthiness, deputes some persons to him, to address him in this manner,
Lord, I am not worthy that thou shouldst come under my roof.
This is not said as rejecting and despising the presence and company of Christ; but is expressive of his great modesty and humility, and of his consciousness of his own vileness, and unworthiness of having so great a person in his house: it was too great a favour for him to enjoy. And if such a man was unworthy, having been an idolater, and lived a profane course of life, that Christ should come into his house, and be, though but for a short time, under his roof; how much more unworthy are poor sinful creatures (and sensible sinners see themselves to be so unworthy), that Christ should come into their hearts, and dwell there by faith, as he does, in all true believers, however vile and sinful they have been?
But speak the word only, and my servant shall be healed.
As the former expression declares his modesty and humility, and the mean apprehensions he had of himself; so this signifies his great faith in Christ, and the persuasion he had of his divine power: he does not say pray, and my servant shall be healed, as looking upon him barely as a man of God, a prophet, one that had great interest in God, and at the throne of grace; but speak, command, order it to be done, and it shall be done, which is ascribing omnipotence to him; such power as was put forth in creation, by the all commanding word of God; "he spake, and it was done, he commanded, and it stood fast", ( Psalms 33:9 ) yea, he signifies that if he would but speak a word, the least word whatever; or, as Luke has it, "say in a word"; let but a word come out of thy mouth, and it will be done.