Now you tell me, when a father goes ahead and washes diapers or performs some other mean task for his child, and someone ridicules him as an effeminate fool—though that father is acting in the spirit just described and in Christian faith—my dear fellow you tell me, which of the two is most keenly ridiculing the other? God, with all his angels and creatures, is smiling—not because that father is washing diapers, but because he is doing so in Christian faith. Those who sneer at him and see only the task but not the faith are ridiculing God with all his creatures, as the biggest fool on earth. Indeed, they are only ridiculing themselves; with all their cleverness they are nothing but devil’s fools.
From: Luther, “On the Estate of Marriage”, Luther’s Works Vol.45 page 41 (HT: Pr. Lorfeld at Messiah Lutheran Church, La Crescent MN)