The natural world at the dawn of creation was filled with a rare, flawless beauty. Detailing the precious resources surrounding the Garden of Eden serves to highlight the perfection of this early era and glorify the sanctuary itself. By specifically identifying these materials as products of the earth, ancient myths suggesting that gold and gems grew like fruit on the trees of Eden are dismissed. Instead, they are entirely natural formations, though their close proximity to the garden elevates them into symbols of absolute purity from a time before human sin [שד״ל, קאסוטו]. Furthermore, the presence of such extraordinary wealth in the rivers flowing outward naturally implies an even greater, unimaginable splendor within the garden itself [חזקוני].
The gold found in this region was of an exceptionally rare and superior quality [ביאור שטיינזלץ]. Its excellence meant that it would not lose any weight during the refining process, and its immense value allowed a tiny, easily guarded amount to cover vast expenses [תורה תמימה]. It was so pure that it retained its brilliant beauty even if mixed with copper [חזקוני]. A contrasting perspective suggests that this gold held no intrinsic value of its own, but was simply necessary as a currency for people to purchase the truly magnificent and rare stones that could only be found in that land [מלבי״ם]. On a deeper spiritual level, the high quality of these resources hints at the ultimate reward awaiting those who perform good deeds with hope in God. It also serves as a subtle reference to the Oral Torah and the spiritual teachings of the Land of Israel [העמק דבר, פני דוד].
Among the treasures mentioned is bdellium, the exact nature of which is a subject of debate. While one approach identifies it as a fragrant tree resin, others argue that resin lacks the prestige required to be listed alongside fine gold and precious gems. The primary approach among commentators is that bdellium refers to a pearl or a small, round, clear, and white precious stone formed from the dewdrops of the river. Because of its tiny size, it could not be carved into objects but was instead pierced and strung into necklaces [שד״ל, אבן עזרא, רד״ק, מחוקקי יהודה]. The clear, round appearance of this stone is later compared to the Manna that fell for the Israelites in the desert, creating a profound connection between the earth's natural abundance and the heavenly food provided by God without human toil [אבן עזרא, קיצור בעל הטורים, קאסוטו].
In contrast to the tiny bdellium, the onyx is described as a large, clear, white precious stone suitable for crafting magnificent vessels for royalty [רד״ק, מחוקקי יהודה]. Generations later, these majestic onyx stones would be set into the garments of the High Priest. In that sacred context, they served as a symbol of atonement for the sins of the people, acting as an enduring reminder of humanity's original purity in the Garden of Eden before the introduction of sin [רד״ק, קאסוטו].