When I was kid, which wasn't that long go according to latest studies, I remember a folk song sung (not to be confused with Sing-Sing) with lyrics that started, "Daniel Boone Was a Man, Was a Big Man." You may remember the song if you were born in a log cabin like me. OK, so Daniel Boone was a big man. He must have been who Paul was talking about in Ephesians 5:23 when he wrote, "For the husband is the head of the wife, even as Christ is the head of the church: and he is the saviour of the body." He would have to be very big, at least as big as a Macy's Thanksgiving Day float, I've often thought, if he is "the husband." I mean, if "the church" later in the same verse is the universal church and "the body" is the universal body, then THE husband would have to be the universal husband and THE wife would have to be the universal wife. I have often wanted to see the universal husband. I wish they could tether him for a parade just once so that everyone could enjoy him. One time someone told me that "they knew the wife, but they couldn't remember the husband." I thought: What a special privilege even to know the wife in Ephesians 5:23 because I've never seen her. She must be big too. I wonder if she also has a big rolling pin?
Of course, "the husband" isn't a particular husband, not a specific one the size of Atlas holding up the earth. "The husband" is a generic singular noun. The singular noun of both Greek, the language in which the New Testament was written, and English, which you are reading, can only be either generic or particular. If Ephesians 5:23 is not talking about a particular husband, it could only be talking about a generic husband. The generic is a generalized use of a singular noun, seeing the noun in an institutional way, not talking about anything in particular. Here's an example. "The heart is what pumps the blood." We aren't talking about a particular heart, but the heart in general.
Most people would laugh at the idea that there could be some universal, invisible husband. For that matter, most people would also laugh if someone said there was some universal, invisible church. Ooops. I guess people don't laugh at that. They should though. Grammar doesn't allow for a universal, invisible church in Ephesians 5:23 without there being a universal, invisible husband. The reality of "the husband" as a generic is found in a particular husband. The reality of "the church" as a generic is found in a particular church. When Paul says the husband is the head of his wife, he means a local, visible husband, and when he says that Christ is the head of the church, he means a local, visible church. If not, then Daniel Boone was a big man, but this other guy is definitely bigger, folks. Maybe Paul Bunyan?