Expositor's Bible Commentary Commentary Luke 10:6

"And if a son of peace be there, your peace shall rest upon him: but if not, it shall turn to you again." — Luke 10:6 (ASV)

Greetings are to be reserved for the hosts of the seventy-two. “Peace” (GK 1645), so familiar in Jewish salutations, has a rich connotation here. If the host has a proper attitude toward God, he will receive the blessings of the kingdom (v.9). But this promised peace would leave those hosts who were not receptive to the kingdom’s message.