Mark 6:7-12.

Mark 6:7-12 [7]And He summoned the twelve and began to send them out in pairs, and gave them authority over the unclean spirits; [8]and He instructed them that they should take nothing for their journey, except a mere staff-no bread, no bag, no money in their belt- [9]but to wear sandals; and He added, "Do not put on two tunics." [10]And He said to them, "Wherever you enter a house, stay there until you leave town. [11]Any place that does not receive you or listen to you, as you go out from there, shake the dust off the soles of your feet for a testimony against them." [12]They went out and preached that men should repent.