If the Son of peace be there,— That is, "If the master of the house be a virtuous well-disposed person, and receive you kindly, your peace shall rest upon it: your blessing, which ye gave at your entrance, shall, by my power, be made effectual to that purpose." See Matthew 10:12.
Related Commentaries of Luke 10:6
Luke 10:6
6 And if the son of peace be there, your peace shall rest upon it: if not, it shall turn to you again.