Then he went about among the villages teaching. He called the twelve and began to send them out two by two, and gave them authority over the unclean spirits. He ordered them to take nothing for their journey except a staff; no bread, no bag, no money in their belts; but to wear sandals and not to put on two tunics. He said to them, ‘Wherever you enter a house, stay there until you leave the place. If any place will not welcome you and they refuse to hear you, as you leave, shake off the dust that is on your feet as a testimony against them.’ So they went out and proclaimed that all should repent. They cast out many demons, and anointed with oil many were sick and cured them.” Mark 6:7-13