Luke 10:5

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

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

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

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

7And in the same house remain, eating and drinking such things as they give: for the labourer is worthy of his hire. Go not from house to house.