“If anyone is there,

Who shares in peace,

Your peace

Will rest

On that person.

But if not,

It will return

To you.”

 

καὶ ἐὰν ἐκεῖ ᾖ υἱὸς εἰρήνης, ἐπαναπαήσεται ἐπ’ αὐτὸν ἡ εἰρήνη ὑμῶν· εἰ δὲ μήγε, ἐφ’ ὑμᾶς ἀνακάμψει.

 

Luke indicated that Jesus said that if there was a son of peace (καὶ ἐὰν ἐκεῖ ᾖ υἱὸς εἰρήνης) or anyone there who shared in peace, their peace would rest or remain on that person (ἐπαναπαήσεται ἐπ’ αὐτὸν ἡ εἰρήνη ὑμῶν).  But if not (εἰ δὲ μήγε), that peace would return to them (ἐφ’ ὑμᾶς ἀνακάμψει).  Matthew, chapter 10:13, had something similar when Jesus was talking to his 12 apostles before their missionary expedition.  If there were worthy people or the house was worthy, they should let their peace come upon them.  However, if they are not worthy or deserving, their peace should return or turn back to them, the same as Luke here.  I am not sure how you would get your peace greeting revoked in some way.  Have you ever been mad because someone did not return you peace greeting?