Mark 6:13

And they cast out many devils, and anointed with oil many that were sick, and healed them.

wherever it may be that they entered into a house, whether in city or town or village, there, in that house, they should stay. They should neither lose time for their work by searching for a pleasant boarding-place, nor should they bring themselves into the suspicion of partiality. In the house which they should enter first they should stay until they left the village or neighborhood; that should be their home for the time being. If, however, it should so happen that some place, city, town, or village, would not receive them nor its inhabitants listen to them, they should go away from that place. And in so doing, they should shake the very dust, not only from their feet and clothing, but the dust under their feet, the dust from the roads that adhered to the soles of their sandals. This was a sign that there could be no communion with such foolish and untractable people, that they must be considered on a level with the heathen. It was a testimony, a judgment upon them. The people of Sodom and Gomorrah, that had been exterminated by one of the most awful visitations of God upon the wicked, will receive a more lenient sentence on the last day than such willful opponents of the mercy of God. The twelve disciples followed instructions; they carried out their mission through preaching and healing. The burden of their call was the need of repentance, in order that the sweet news of the Gospel might find a ready acceptance. Mark also relates that they expelled many demons and effected the cure of many suffering with various minor ailments. The power of the Lord went with them, according to His promise.