As you enter the house, greet it.
12. Salute it. As they could not distinguish the devout worshippers of God from despisers, he enjoins them to address in a friendly manner any family which they may have occasion to meet. The act of saluting is a kind of opening to a conversation. They had already been warned to look out for persons to entertain them, whose religious zeal was generally known and believed.
We have here the instructions that Christ gave to his disciples, when he gave them their commission. Whether this charge was given them in a continued discourse, or the several articles of it hinted to them at several times, is not material; in this he commanded them. Jacob's blessing his sons, is called his commanding them, and with these commands Christ commanded a blessing. Observe, I.
Commenting on Matthew 10:5-15
And if the house be worthy,.... If the family, and particularly the master of it, appeared to be civil, courteous, friendly, and hospitable, upon such a salutation, and ready to receive and embrace them, and provide for them, let your peace come upon it, or it shall come upon it; the imperative for the future, which is not unusual; and so read the Syriac and Vulgate Latin.