The manna story in (Exodus 16) raises an obvious question: where did this miracle food come from? The Hebrew Bible says God "rained bread from heaven." The Targum Jonathan gives a far more specific answer. The manna was "bread which hath been laid up for you from the beginning." It was prepared at creation and stored in the heavens, waiting for this exact moment.
The logistics of manna delivery get remarkably detailed in the Targum. First, "holy dew" fell and was "prepared as a table" around the camp. Then "the clouds ascended and caused manna to descend upon the dew." The manna landed on a tablecloth of dew. This is not rain from the sky. It is a catered meal from heaven.
When the Israelites first saw the manna, the Targum preserves their bewildered Aramaic reaction: "Man Hu?"—"What is it?" Moses answered that this was the bread stored "from the beginning in the heavens on high." The Targum twice emphasizes the manna's primordial origin, a detail the Hebrew text never states.
The Targum names names when it comes to disobedience. Where the Hebrew says "some of them" hoarded manna overnight against Moses' instructions, the Targum identifies the offenders: Dathan and Abiram, "men of wickedness." These two troublemakers, who later appear in the Korah rebellion (Numbers 16), are retroactively inserted into the manna story as chronic agitators.
The Sabbath laws get expanded too. God tells Israel not only to stay home on the seventh day, but specifies: "not wander from one locality to another, beyond four yards; nor let any man go forth to walk beyond two thousand yards on the seventh day." The Targum transforms a general commandment to rest into the precise halakhic measurements of the Sabbath boundary, the techum Shabbat (the Sabbath), projecting rabbinic law back into the wilderness itself.