A viewer asks Rabbi Reuven, since the Avot like Avraham Avinu kept the entire Torah, how were their Tefillin kosher and how did they have the correct passages from the Torah before they were given? Rabbi Reuven gives a deep reply that resolves the question and also answers many other questions about the Written and Oral Torah.

There are over 1000 Halachot of Tefillin which were all given to Moshe Rabbeinu at Mount Sinai, but the Oral Torah existed since the time of Adam HaRishon. The Written Torah was known since Creation as well, but it wasn't separated into words until HaShem told Moshe how to write the first Torah scroll.