THE FIRST DEGREE of humility is obedience without delayChapter 7, Rule of St. Benedict
A note that I want to expand on this for Oblates, that is people in the world who strive to live by the Rule.
While this is mentioned in the context of living under an abbot at a monastery, we can apply this to married life.
If my wife and I are fulfilling our role as the leaders of our domestic church, then our individual primary goal is to return to God with our spouses. With that in mind, my wife represents an abbess to me (and I an abbot to her) and so I should obey her without delay.