Albert Barnes Commentary Luke 10:6

"And if a son of peace be there, your peace shall rest upon him: but if not, it shall turn to you again." — Luke 10:6 (ASV)

The son of peace—that is, if the house or family is worthy, or is disposed to receive you in peace and kindness (Matthew 10:13). The son of peace means one disposed to peace, or peaceful and kind in his disposition .