Moses' long stay on Mount Sinai reached a profound spiritual peak that tragically collided with a severe national crisis. Earlier in his addresses, Moses only gently hinted at the people's past failures out of respect for them. Now, however, he chooses to expose the sin of the Golden Calf in full, open detail [ברכת אשר על התורה].
The conclusion of his forty days and nights on the mountain occurred at the dawn of Friday, the seventeenth of Tammuz [חזקוני]. This extended period of waiting was not accidental. Moses required these forty days to undergo a deep spiritual purification, transforming into a new creation so he could be worthy of receiving the sacred tablets [מלבי״ם].
The timing of God handing over the tablets was highly dramatic, occurring on the exact same day the people committed the sin of the Golden Calf [אבן עזרא, רבנו בחיי, צאינה וראינה]. This raises a natural question: why would God grant Moses the tablets knowing the Israelites were actively sinning below? God purposefully gave the tablets to Moses before revealing the nation's failure to signal that hope remained, urging Moses to fight and pray on their behalf [ביאור יש״ר].
As the reality of the disaster set in, Moses intentionally shattered the tablets. He did this to lessen the Israelites' punishment; without the physical tablets in their possession, it was as if they had not yet fully received the Torah, making their sin less severe. Furthermore, the physical reality of the tablets changed. Once the holy letters vanished and abandoned the stone, the tablets became unbearably heavy, causing Moses to drop them from his hands [צאינה וראינה].
The transition of the tablets from mere stone to a binding covenant reflects a distinct process. At the beginning of the forty days, before the transmission of the Torah was complete, they were merely physical stones. Only at the end of this period, after Moses finished learning both the Written and Oral Torah, was the covenant finalized, elevating the stones to the binding status of the tablets of the covenant [העמק דבר]. The fact that there were exactly two tablets carries deep symbolic weight, representing complementary pairs in creation: groom and bride, heaven and earth, the Written and Oral Torah, and this world alongside the world to come. To reflect this perfect harmony, the two stones were absolutely identical and equal in all their dimensions [דעת זקנים].