
In last week's Torah reading, Jacob wrestled with the Mysterious Personage. You remember the story? Jacob is rather jolly worried about meeting up with Esav after twenty-odd years apart, given the circumstances under which they parted (i.e. Jacob running away because Esav was planning to kill him). So he spends the night alone in the wilderness, having sent everyone else on ahead - maybe not the most sensible thing to do, strategically, but anyway - and a Mysterious Personage wrestles with him all night, and Wrenches his Thigh. Dawn comes up, and the Mysterious Personage says cripes, time I was off (rather like the trolls in
The Hobbit), and Jacob is left bemused and limping. And so the Israelites refrain from eating the
gid ha-nashe to this day.
Which, of course, is the ideal time for the post about Sewing, because the
gid ha-nashe is identified by rabbinic tradition with the sciatic nerve, and we
don't use it for sewing Torahs. We use other
gid - "sinew" - tendons, usually - animal tendons, of course, not people ones, spun with glue (
more about that).
New
sheets of parchment come as single sheets, not as one big roll, and one sews them together after they've been written. People ask incredulously "Do you sew them together
yourself?" I don't understand whence the incredulity, honestly - is it part of the Brave New culture which doesn't mend but buys new? Yes, one sews them together oneself. Compared to how much work the writing is, the sewing's a breeze.

Before sewing, I make the holes for the stitches with an awl, rather like a shoemaker would. The stitches go through twelve holes, one for each tribe of Israel. They make eleven stitches, one for each allotted tribal portion in the Land of Israel. The tribe of Levi, the priests, did not have land of their own; they lived throughout the country, uniting the other tribes by creating a holy presence all through the land. So too the thread moves from stitch to stitch, uniting them together in a seam, uniting the sheets of writing together as a scroll. Without the seams, the Torah is fractured, Israel is divided, even if all the words are there.

Note: This is
custom, not
law. Technically, there is no given number of stitches to be used in the seam, provided there are some at the top, middle, and bottom. I like the above interpretation, so that is how I am making my seams, but a seam with a different number of stitches is
not invalid. It is important to be clear about the distinction between custom and law.
The stitches are essential, and just as holy as the letters. It follows that just as there is a special declaration of intent to be made before writing, there is one to be made before sewing. One has to be conscious of doing the job specially for this particular Scroll - it's not just any old sewing, any old scroll - it's THE sewing, THE scroll.

And after all that build-up, the seam itself is just an ordinary (if large) running stitch. You sew wrong side out, just like you would any sewing, you knot the thread and do a backstitch at either end, like any sewing, and afterwards you turn it right side out and press the seam, like any sewing. Except you use a bookbinder's tool, called a bone folder, not an iron.
Et voila!