Matthew 23:10 and 1 Peter 3:6.
I have had correspondence from Christians who claim that the d/S relationship is not inappropriate in the Church. And yet, the husbands in these relationships are called "master" (I flatly refuse to capitalize it). And yet, I would raise the question: is direct disobedience to the clearly stated command of Christ inappropriate in the Church? But, someday, they will explain it to Him, not me.