The final moments of the nation's leader arrive at a decisive crossroads as God commands him to climb the mountain in preparation for his passing. This instruction concludes a long series of farewells and takes place on a day of profound significance. The timing points to the exact day Moses finished his final song, wrote down the Torah, delivered it to the Israelites, and completed all his duties as a leader [אבן עזרא, חזקוני, צרור המור, אברבנאל]. It was exactly his birthday, marking the precise completion of his years [אדרת אליהו]. Having accomplished everything required of Him, the time had come for a one-way journey up the mountain [אברבנאל]. His purpose was to see the land, pass away, and be laid to rest in a hidden location so the people would not become preoccupied with his burial [מלבי״ם].
Beyond the calendar date, the timing of this ascent carries a highly dramatic meaning. The primary approach among commentators is that this event occurred in broad daylight, in full view of the entire public. The Israelites refused to accept the passing of the man who had led them out of Egypt, split the sea, brought down the manna, and given them the Torah. They boldly declared that if they sensed his approaching death, they would not allow him to die. In response, God determined that Moses would depart exactly in the middle of the day, openly and publicly. It was a direct challenge to the nation, signaling that anyone who believed they had the power to protest should step forward and do so [רש״י, תורה תמימה, צפנת פענח].
This raises a natural question: how could the Israelites possibly think they could prevent a human death? They understood that the passing of Moses was not a natural death, but rather the spiritual departure of a deeply purified physical body. Because of this unique state, they believed they could intervene and stop his departure [שפתי כהן], whether by physically blocking his path to the mountain or by relying on the immense power of prayer [ברכת אשר].
Furthermore, the timing in the middle of the day reflects Moses' own personal strength in his final moments. While a typical death is often compared to a setting sun, Moses never weakened and his strength never faded. His passing was therefore like the sun shining at its absolute peak [כלי יקר]. His journey toward death was not a passive surrender to physical failure, but a free and moral act of total submission to God's will, carried out in the full light of day [רש״ר הירש].
The divine communication concludes with an instruction to speak. God directed Moses to explicitly tell the people that he was ascending to die, serving as a direct answer to their refusal to let him go [אור החיים]. Another perspective views this final instruction as an echo of God's public challenge, meaning that anyone who had an objection to his departure was invited to speak up right then and there [שפתי כהן].