Luke 10:1-6

After this, the Lord appointed seventy-two  others, and he sent them ahead of him in pairs to every town and place where he himself was about to go. He told them,  “The harvest   is abundant, but the workers   are few. Therefore, pray to the Lord of the harvest to send out workers into his harvest.   Now go; I’m sending you out like lambs among wolves.   Don’t carry a money-bag,   traveling bag,   or sandals;   don’t greet anyone along the road. Whatever house you enter, first say, ‘Peace   to this household.’ If a person of peace is there, your peace   will rest on him; but if not, it will return to you.