When the written Torah says to “Not to go out of your place on the Sabbath” it is saying that on Day 6 there will be enough Mannah for two days. We may go out and gather on the 6th but on the 7th we are not to go out to gather. Why does the Oral Law seems to make so much more out of this simple rule? Cannot carry out of ones home, etc etc. It is very confusing.

Thank you for your question. The Mishna in Chagiga says that many of the laws are like ‘mountains suspended from threads’, in that there are only a few details written in the Torah, and most of the laws are from the Oral Law. The laws of Shabbat are one example of this. It states in the Torah that the Jews are commanded to keep Shabbat, and that anyone who does not keep Shabbat should be put to death. Nevertheless only two (or possibly one, if you don’t like the hint that you quoted) of the actual melachot (forbidden activities) are mentioned explicitly in the Torah. One is lighting fire, and the other is carrying (there is also a hint at the prohibition of carrying from Numbers 15; 32 where a person is put to death for gathering wood on Shabbat). The rest of the 39 melachot, including all of the details and subcategories were given by G-d to Moshe on Mount Sinai, but not written down. Moshe passed these laws on to the people and it remained an oral tradition until they were written down by Rabbi Yehuda
HaNassi in the Mishna, after the destruction of the Second Temple. Only a minority of the laws are written with their details in the Torah, the vast majority were only transmitted orally. (The Talmud Brachot 5a learns from a verse that all of the laws of the oral Torah were given to Moshe at Sinai).

Some of the laws from the Oral Torah are hinted at in the Written Torah (even though some of the hints are very tenuous), and the Rabbis point these out to us as a way of remembering the details, and as a way of showing that even the Oral Laws are from G-d, just like the Written Laws.

Rabbi David Sedley