And Jesus saith unto him, I will come and heal him. This answer of Christ's, which is short and full, not only shows the readiness of Christ to do good, how soon and easily he complied with the centurion's request, it being a prayer of faith, and so effectual, and was heard as soon as delivered; but also contains an absolute promise that he would heal him.
He does not say that he would come and see him, and what his case was, and do what he could for him, as ordinary physicians do; but he would come and heal him at once: and indeed it is a proposal of more than what was asked of him; his presence was not asked, and yet he offered it; though Luke says, that he besought him by the messengers to "come and heal his servant"; and so this is an answer to both parts of the request; the whole is granted.