I will come and heal him - Εγω ελθων θεραπευσω αυτον, I am coming, and will heal him. This saying is worthy of observation. Jesus did not positively say, I will came and heal him; this could not have been strictly true, because our Lord healed him without going to the house: and the issue shows that the words ought to be taken in the most literal sense: thus understood, they contained a promise which it seems none of them distinctly comprehended. Foreseeing the exercise of the centurion's faith, he promises that while he is coming, ere he arrives at the house, he will heal him, and this was literally done, Matthew 8:13. There is much beauty in this passage.

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. Christ cannot deny anything to faith, his presence or assistance.

Heal (θεραπεύσω)

So A. V. and Rev. The word, however, originally means to attend, and to treat medically. The centurion uses another and stronger word, shall be healed (ἰαθήσεται). Luke, who as a physician is precise in the use of medical terms, uses both words in one verse (Luke 9:11). Jesus healed (ἰᾶτο) all who had need of treatment (θεραπείας). Still, Luke himself does not always observe the distinction. See on Luke 5:15.

And Jesus saith unto him, I will come and heal him.

8:7 Jesus saith unto him. Luke tells us that he started at once, but was interrupted by what follows.

8:5-13 This centurion was a heathen, a Roman soldier. Though he was a soldier, yet he was a godly man. No man's calling or place will be an excuse for unbelief and sin. See how he states his servant's case. We should concern ourselves for the souls of our children and servants, who are spiritually sick, who feel not spiritual evils, who know not that which is spiritually good; and we should bring them to Christ by faith and prayers. Observe his self-abasement. Humble souls are made more humble by Christ's gracious dealings with them. Observe his great faith. The more diffident we are of ourselves, the stronger will be our confidence in Christ. Herein the centurion owns him to have Divine power, and a full command of all the creatures and powers of nature, as a master over his servants. Such servants we all should be to God; we must go and come, according to the directions of his word and the disposals of his providence. But when the Son of man comes he finds little faith, therefore he finds little fruit. An outward profession may cause us to be called children of the kingdom; but if we rest in that, and have nothing else to show, we shall be cast out. The servant got a cure of his disease, and the master got the approval of his faith. What was said to him, is said to all, Believe, and ye shall receive; only believe. See the power of Christ, and the power of faith. The healing of our souls is at once the effect and evidence of our interest in the blood of Christ.