Luke 10:4

2 Therefore said he unto them, The harvest truly great, but the labourers few: pray ye therefore the Lord of the harvest, that he would send forth labourers into his harvest.

3 Go your ways: behold, I send you forth as lambs among wolves.

4 Carry neither purse, nor scrip, nor shoes: and salute no man by the way.

5 And into whatsoever house ye enter, first say, Peace to this house.

6 And if the son of peace be there, your peace shall rest upon it: if not, it shall turn to you again.