Ambrose of Milan

For if for thy sake the Lord renounces His own mother, saying, Who is my mother? and who are my brethren? (Matt. 12:48, Mark 3:33.) why dost thou deserve to be preferred to thy Lord? But the Lord will have us neither be ignorant of nature, nor be her slaves, but so to submit to nature, that we reverence the Author of nature, and depart not from God out of love to our parents.