@deuteroKJ, that, I think, is a really fascinating question, so how do we go about finding it?
First, to find a toledoth one has to know what a toledoth is. So here is a model of a toledoth: Imagine writing your own toledoth. Start with a little ancestry research and go back until you find you are related to someone important, say, Charlemagne, and stop there (that’s the first rule). Put in a bit about the important stuff in your life, if anything. That includes listing your kids and grandkids (the one’s you know about because you aren’t dead yet - rule 2). If space is short, just include a few significant kids. Then rule 3 is, never put in how old you were on the day you died (think you can keep that?). Now put that in a book and on the spine write, “The Toledoth of @deuteroKJ”. Stick it on a shelf. Done.
So that’s how I explain my model toledoth.
Terah followed this model. His toledoth starts in 11:10b “Two years after the flood…” and goes down to himself. He notes how old everyone was when they died, except of course for himself. He lists his 3 most important (or possibly only) children. He puts “This is the toledoth of Terah on the edge of the clay tablet” and sticks it on the shelf. Done.
Then we start a new story in 11:27b. It starts off with Terah and since he’s famous enough to have his own toledoth on the shelf, we don’t need to go back any farther. But, we need to know a little about his kids because it’s important to the story. There’s a real kicker in this intro - very important: “Now Sarai was barren; she had no children.” Keep that in mind. We find out how old Terah is when he died, proving he didn’t write this part of the story. After this, we launch into the main narrative. Abram is already 75 years old at this point. Also important to note.
So we read along, and the plot arc develops. This guy Abram has no son. (remember that from the intro?) Turns out that’s a huge deal. He gets a son, Ishmael. Problem solved? Not so fast. Ishmael has to leave. He has another son, Isaac. Problem solved? He has to kill his son! But wait, no he doesn’t. Dramatic!
The son, Isaac, grows up and it’s a really big deal who he marries and how that unfolds. We know who Abram married, but none of the details. We started Abram’s story when he was 75. Remember that! Skipped all the early stuff. Finally we find out that Abram (now Abraham) is 175 when he dies. Clue - he didn’t write that. We get Isaacs denouement in 25:11 “After Abraham’s death, God blessed his son Isaac, who then lived near Beer Lahai Roi”. That’s the end of the story. Isaac is still alive. Looking on the shelf we see all these tablets now filled with this story, but what does it say on the spine? What’s the colophon?
Not so fast, there is another tablet. We pull it and it starts out with “This is the toledoth of Abraham’s son Ishmael” 25:12 but this toledoth tells us that Ishmael died when he was 137, so clearly, Ishmael didn’t write this, because that breaks one of our rules.
But Isaac outlived Ishmael by quite a long time. He met Ishmael again at his father’s funeral, so he could learn about Ishmael’s descendants.
Then we come to 25:19a “This is the account of Abraham’s son, Isaac”. Now we look up on the shelf and see all these tablets and that is what is on the spine. That’s the colophon. That’s the label on all the stuff we just read and that identifies the principal author.
That’s the label on the edge of the tablet that includes Ishmael’s descendants and records Ishmael’s death. This is Isaac’s story. It skips past all of Abraham’s young years. The story doesn’t start until the part about Abraham not having a son, and that son that Abraham doesn’t have, is Isaac.
What follows starting in 25:19b is about Jacob. And Isaac clearly didn’t write it, because he dies in the story.
Here is the chestnut (ask this in class some day): Where in the Bible do you find the story about the man who had no son, written by the man’s son?
So that answers the question, where is Abraham’s toledoth? He doesn’t have one. A man without a son doesn’t need one. But, Isaac, Abraham’s son does. Ironic. Think on it.
Eventually we find out what happened to Ishmael.