Matthew 10:8 “Heal the sick, cleanse the lepers, raise the dead, cast out devils: freely ye have received, freely give. “
It showed that the intent of the doctrine they preached, was to heal sick souls, and to raise those that were dead in sin. In proclaiming the gospel of free grace for the healing and saving of men’s souls, we must above all avoid the appearance of the spirit of an hireling. They are directed what to do in strange towns and cities. The servant of Christ is the ambassador of peace to whatever place he is sent. His message is even to the vilest sinners, yet it behooves him to find out the best persons in every place. It becomes us to pray heartily for all, and to conduct ourselves courteously to all. They are directed how to act as to those that refused them. The whole counsel of God must be declared, and those who will not attend to the gracious message, must be shown that their state is dangerous. This should be seriously laid to heart by all that hear the gospel, lest their privileges only serve to increase their condemnation.
…. Mathew Henry’s Bible Commentary