“Peace of the Father”, “Perfect Peace”, Peace be unto this house or “Peace be unto you;” constitute the general greetings of BCS members irrespective of the time or occasion. Peace is a heavenly language. Our Lord Jesus Christ is the Prince of Peace. He used the same greetings of “Peace” and His disciples followed suit in their evangelism, and after His ascension.
Isaiah 9:6 [KJV]  For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counseller, The mighty God, The everlasting Father, The Prince of Peace.
John 20: 19 & 26 [KJV]  Then the same day at evening, being the first day of the week, when the doors were shut where the disciples were assembled for fear of the Jews, came Jesus and stood in the midst, and saith unto them, Peace be unto you.  And after eight days again his disciples were within, and Thomas with them: then came Jesus, the doors being shut, and stood in the midst, and said, Peace be unto you.
Matthew 10: 12-13 [KJV]  And when ye come into a house, salute it.  And if the house be worthy, let your peace come upon it: but if it be not worthy, let your peace return to you.