Jesus sent the apostles forth to carry his message to more people, taking little for the journey and moving on if people would not receive them. This allowed them to reach more people. We are also called to move forward and reach out to others, not to look back or bring people in.
Based on Mark 6:7–13:
Jesus 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 who were sick and cured them.
(New Revised Standard Version Bible: Anglicized Edition, copyright © 1989, 1995 National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved worldwide. http://nrsvbibles.org)