Luke 10:6 in the World English Bible
If a son of peace is there, your peace will rest on him; but if not, it will return to you.
Context
5 And into whatsoever house ye enter, first say, Peace be 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.
7 And 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.