Joshua Forgot 300 Laws the Moment Moses Died

The first thing Joshua did after claiming to know everything was forget three hundred laws.

The sequence is almost brutal in its comedy, and the Legends of the Jews by Louis Ginzberg (1909-1938) does nothing to soften it. The full account of Joshua's unlikely succession begins not with his military victories but with a reputation that the tradition assigns him without cruelty: the man was a fool. Not vicious, not incompetent, not corrupt. Just a person who served without ambition, without calculation, without the restless clever intelligence that makes a man impressive in a room and dangerous in a power vacuum.

Joshua's service to Moses was the kind that earns no recognition because it requires no talent. Every morning and every evening, before the scholars arrived and after they left, Joshua came to the house of teaching and set up the benches. He arranged the seats. He swept the floor. He was, in the vocabulary the later tradition would develop, the quintessential shamash, the attendant who keeps the space ready for things more important than himself. His entire qualification for leading Israel was this: he showed up first and left last, and he did it every single day without being asked.

Moses, standing at the edge of his death, offered Joshua a final opportunity. Ask any question you have, he said. Anything you are uncertain about, anything you were afraid to raise during all the years of study, ask it now. Joshua's answer was immediate and confident: he had none. He had attended every lesson. He had been present for every teaching. There was nothing left that he needed to know.

Moses died. Joshua forgot three hundred laws and had active doubts about seven hundred more. A thousand specific points of Torah, dissolved in the moment the teacher's voice went silent, the moment Joshua had no one to ask because he had just declined the last offer to ask anything.

The people of Israel were already in grief. Moses had begged God for a worthy successor because he understood exactly how high Israel's standards were and how quickly they would turn on someone who failed to meet them. Now, thirty days into mourning the greatest prophet who had ever lived, the people discovered that their new leader couldn't answer a thousand basic questions. Their grief converted directly into fury. They threatened to kill him.

God's solution was immediate and, in retrospect, elegant: go to war. The command to begin the conquest of Canaan arrived directly on the heels of the crisis, and the Ginzberg tradition is clear that the timing was not incidental. An army mobilizing for the most significant military campaign in its history does not have bandwidth to organize a coup against its commanding general. The urgency of the moment swallowed the grievance. By the time the Jordan had been crossed and the first cities fallen, no one remembered that they had been planning to kill Joshua for not knowing enough about Torah.

But before the mobilization could begin, God appeared to Joshua. And God found him holding the Book of Deuteronomy, Moses's last scroll, the one Moses had dictated in the final weeks of his life, the record of everything he had wanted to say and hadn't yet said when the time was almost gone. Joshua was standing there with the book in his hands when God spoke.

"Be strong and of good courage; the book of the law shall not depart out of your mouth" (Joshua 1:8). The instruction is not primarily military advice, though it is surrounded by military instructions. It is a correction of the mistake Joshua had just made. He had told Moses he had no questions because he believed he had absorbed everything. God was telling him that the absorption was never complete, that the book in his hands was not a record of something finished but a conversation that continued indefinitely, and that his job was not to have already learned everything but to keep reading, keep asking, keep studying, even now that the teacher was gone.

The Talmud Bavli, in tractate Temurah (sixth-century Babylon), records what happened to the forgotten laws. They were not lost permanently. Othniel ben Kenaz, who would later become the first of Israel's judges, recovered them through legal reasoning. He sat with what remained and thought his way back to what had disappeared. Torah, the tradition insists, is recoverable as long as someone is willing to think hard enough and long enough about what it must have said.

Joshua conquered thirty-one kings. He divided the entire land of Canaan among twelve tribes without a major internal dispute. He led Israel across the Jordan and organized a military campaign of a complexity that ancient sources compare only to the Exodus itself. The tradition gives him enormous credit for all of it.

But the tradition also preserves this: the man who became Israel's greatest general after Moses began his leadership by forgetting a thousand laws, nearly being killed for it, and being saved by an order to go to war before anyone could finish being angry at him.

He kept the book close after that. God had told him to, and he had learned, at enormous cost, exactly what happened when he thought he didn't need it.