Unfortunately... I dont remember a *specific* source It might have even been multiple sources.
I think it was at some point after I had begun listening to some bible study programs on the radio driving in to work. [random note: for some reason, Christian *radio*, tends to be waaay more solid than Christian tv. I guess tv lends itself to flashy stuff, whereas radio, you actually have to concentrate on the words!]
I had started to hear various of them, discuss what God calls husbands to do, both from the old testament, but primarily from the letters from Paul.
For the first time in my life, the words that I had heard a few times, finally sank in, as being true, literally. I heard them say straight out, that yes, when he says, "love your wives, as Christ loved the church, gave himself up for her", he REALLY MEANS THAT. He really means, "as best as you are humanly able, sacrifice yourself, and your own wants, to serve your wife".
Previously in my life, pastors and teachers either skipped over that bit, or kinda gave the impression, "well thats impossible so dont take it too seriously"
The sad thing is, it only really hit me, when my marriage was deeply in trouble. My biggest regret is that I didnt find this earlier. I find myself convicted of the need to fully serve my wife... at a time when she is no longer willing to let me
PS: "the song of solomon", is nice for pointing out that God doesnt think "married sex is bad", in the general case. But it's other parts, that point out, "husbands need to give their wives regular sex", among other things.
PPS: ask him to show you where the "except when I'm tired" shows up in the bible. particularly when he's ALWAYS "tired". I'd say, if he's too tired to serve your needs... then the bible calls him to change his life, so that he is no longer tired... so that he can then serve your needs. But it probably needs to be a man who points this out to him, unfortunately.
My current status: june 2006. Wife ran out and filed D. Finalized Jan 11, 2010, after 12.5 years M. 3 wonderful sons caught in the middle