מדרש על במדבר 15:9

We are taught in a Baraitha: R. Jose says: "Just as the prophet disclosed to Israel all that occurred in the very nooks and fissures of their dwellings, so also did the manna disclose all the secrets that were hidden in the very nooks and fissures." In what manner? For instance, when two [litigants] came to Moses, and the plaintiff said: "He has stolen my slave," while the defendant said: "You sold him to me," Moses would say: "In the morning we shall decide it." On the morrow, if the measure of manna for the slave was found in the house of his first master, it became known that the slave had been stolen; but if the measure of manna was found in the house of the other, it was evident that he had bought him. And so also if one came and impeached his wife for adultery, and she counter-charged him with that crime; then Moses again said: "In the morning we shall decide it." If her measure of manna was found in the house of her husband, it was evident that he had sinned; if the measure of manna was found in the house of her father, it was plain that she had sinned." It is written (Num. 15, 9) When the dew fell upon the camp in the night the manna fell upon it; and it is written (Ex. 16, 4) The people shall go out, and gather; and again it is written (Num. 11, 8) The people went about, and gathered it. How are the three verses to be reconciled? As for the righteous, the manna came down at the door of their tents; the average man had to go out and find it; the wicked had to swarm around and gather it." It is written (Ex. 16, 8) bread from heaven; and (Num. 11, 4) … made cakes of it; and (ib.) ground it. How shall these passages be reconciled to each other? For the righteous, it was ready bread; for the average man, it was cakes (unbaked); and the wicked had to grind it in a mill. (Num. 11, 8) Its taste was as of cakes mixed with oil. R. Abahu said: "Just as the breast, in which the suckling, every time he touches it, finds a different flavor [according to what his mother had eaten], so also did the manna, as often as the Israelites ate it, contain all flavors."