Every morning, as the daily service in the Tabernacle began, a unique ritual unfolded that intertwined the preparation of light with the fragrant smoke of incense. Although Aaron the High Priest is specifically instructed to perform this task, the primary approach among commentators is that the duty is not restricted to him alone. Ordinary priests are also permitted to offer the incense, much like the lighting of the Menorah. Aaron is singled out either to honor him as the one who initiates the service for the very first time, or to hint at the sacred Yom Kippur service, which he alone conducts.
The priest is tasked with burning a specialized mixture of fragrant spices. This action takes place at the earliest light of dawn, even before the sun rises. The strong emphasis on the early morning hours indicates that the offering of the incense must always precede the daily morning sacrifice.
The incense is offered precisely as the priest tends to the lamps of the Menorah. Most commentators explain that this tending is not the act of lighting the fire, but rather a process of cleaning and maintenance. The priest removes the burnt wicks and soot left over from the previous night, carefully preparing the oil cups for the next lighting.
While the daily routine begins in the morning, commentators point out that the very first dedication of both the incense altar and the Menorah actually took place in the late afternoon. The logic is simple: a priest cannot clean ashes and burnt wicks in the morning unless the lamps were already lit the night before. In daily practice, the cleaning of the lamps and the burning of the incense were deeply interwoven. Rather than completing the maintenance all at once, the priest would clean five of the lamps, pause his work to offer the incense, and only then return to clean the final two lamps.
This strict integration of the Menorah and the incense holds profound significance [העמק דבר, רש ר הירש]. The Menorah represents the pursuit of wisdom, intellectual effort, and the deep study of the Torah. In contrast, the incense symbolizes moral action, practical support, and acts of kindness. By binding these two rituals together, the Torah teaches that intellectual and spiritual wisdom cannot endure without the foundation of kindness to support them. Moral and practical perfection must accompany intellectual development. Spiritual genius without morality holds no real value, and it is only through good character that the intellect proves its true nobility.