87 "Let us love God our Lord; let us love His Church. Let us love Him as our father and her as our mother, Him as our master and her as His handmaid. For we are the children of His handmaid. This marriage is based on a deep love. No one can offend one of them and be a friend of the other... What difference does it make that you have not offended your father, if he punishes offenses against your mother?... Therefore, dearly beloved, be all of one mind and remain true to God your father and your mother the Church." (38)
Source: Ad Petri Cathedram (Vatican.va)