Picture this: I register my usual complaint about having to prepare a drasha for a Sheva Brachos with my wife. Mrs. Sympathy says, "What's the problem? You've spoken thousands of times. Why don't you just say that vort about marriage being like a house?" Fine. I agreed. I thought about who was going to be there, and decided that nobody had heard that vort, and if they had they would have forgotten it, so it would pass.
Then I get up to begin the speech, and I stand behind my friend, Dr.Irv Birnbaum. Dr. Birnbaum turns around and says "I hope you're not going to say over that thing about what makes a Bayis Ne'eman. I heard that one already." Unfortunately, Dr. Birnbaum is a בור סיד שאינו מאבד טיפה, and he pays serious attention, and so much for the speech I had prepared.
But הודו לה' כי טוב I managed to pull my chestnuts out of the fire, and this is what I said.
There are three hundred sixty five days in the year, three hundred sixty five "giddin/sinews in the body," and three hundred sixty five issurim in the Torah. It has been said that each of these three sets have a one to one correspondence. The date of Tisha B'av, which we just passed through two weeks ago, corresponds with the physical Gid Hanasheh, and the issur of the Gid Hanasheh.
The Sh’lah in Parshas Vayeishev (not Vayishlach, Vayeishev) in the Drush “Tzon Yosef,”section 12, d’h “ve’inyan vateikah,” says:
The malach of Eisav injured Ya’akov by overturning his כף הירך, the kaph hayarech. The letters chaf and phei, which comprise the word "kaph," are variable and can be open or closed. The letters chaf and phei symbolize the hand and the mouth, and the hand and mouth, too, can either be open or closed. An open chaph is better, because it symbolizes a hand, a caph, that is open and gives tzdaka— paso’ach tiftach es yadcha, that is ready to help others. A closed phei is better, because the greatest maileh is shtikah. In other words, the Gid Hanasheh symbolizes the danger of “loose lips and a tight fist,” being loose lipped and tight fisted. The better way is keeping your hand open in generosity and assistance, and your lips tight, avoiding criticism. The malach touched the kaph yerech to put in place a klalah that when the children of Ya’akov are oiver on the chaph and phei that national suffering will result.