The preservation of the heavenly bread transforms from a divine instruction into a physical reality, ensuring future generations will remember their time in the desert. Although the command is given early in the journey, the actual placement of the jar occurs much later, after the Tabernacle and the Ark of the Covenant are constructed [רש ר הירש, ברכת אשר על התורה]. Prior to the Tabernacle's completion, the jar was kept in front of a temporary altar used for sacrifices [בכור שור]. The narrative includes this future event early on to provide a seamless, complete account of the heavenly food [ברכת אשר על התורה]. The act of preserving this food is highly emphasized to ensure it remains an eternal memory of the miracles and wonders God performed for the Israelites in the wilderness [קאסוטו, ביאור שטיינזלץ].
The jar is placed specifically before the Ark of the Covenant, located deep within the Holy of Holies [אבן עזרא, רשב״ם, העמק דבר, שד״ל, ביאור שטיינזלץ]. The Ark earns its title as the testimony because it houses the Tablets, which stand as a permanent witness containing God's commandments [אבן עזרא, שד״ל]. The execution of this task highlights a remarkable precision. While God's initial instruction to Moses was simply to place the jar before Him, a phrase that could have been interpreted as leaving it in the outer courtyard, Aaron understood the exact divine intent. He placed it directly in the Holy of Holies, demonstrating that he fulfilled the instruction exactly as it was meant to be understood without changing a single detail [ברכת אשר על התורה, העמק דבר].
The choice of this specific location carries deep symbolic meaning. Just as the Tablets are a divine creation serving as a testimony to Israel, the miraculous heavenly bread serves as a parallel testimony to God's kindness, making it entirely fitting that they rest side by side [ביאור יש״ר]. Furthermore, bringing physical food to the spiritual Ark teaches that the Torah itself is what truly sustains and feeds the Israelites. By placing the supernatural food next to the equally supernatural Tablets, it becomes clear that dedicating oneself to the Torah is the true source of abundance [העמק דבר]. Aaron recognized that the continuous supply of food for the priests and Levites was not merely a reward for their sacrificial duties. Rather, it was given so they could free their time to fully dedicate themselves to Torah study, which is why he deliberately placed the jar before the Ark that represents the Torah [מלבי״ם]. The original instruction also served to show that leaders like Moses and Aaron merit this continuous supply by virtue of their unique purpose and dedication [מלבי״ם].