Why does the holiest place there is start its day with someone shoveling ashes?
The first act of the Temple day is cleanup. Before any offering, a kohen scoops yesterday's ash off the altar. The Torah gives no reason. The classic commentators give several, and they are not the same.
The most practical one comes from the Sefer HaChinukh (a book from Spain in the 1200s that explains each mitzvah). It is about honoring the Temple. An altar looks better when the place for the fire has been cleared. He adds a plain fact: a fire burns well with no ash under it.
Rabbeinu Bachya (a Torah commentator in Spain around 1300) sees a lesson for the person doing it. Lifting the ash is "the lightest of the services." The Torah gave it, every day, to the kohen set apart for the Temple, so that he would lower himself before God. He adds that even this light job needed the priestly garments.
An older book makes the same point about humility. Chovot HaLevavot ("Duties of the Heart," written in Spain in the 1000s by a different Rabbeinu Bachya) says God required the ash of Aharon, the first Kohen Gadol (High Priest), "to remove pride from his heart."
Rav Samson Raphael Hirsch (a leading rabbi in Germany, who died in 1888) reads the two actions as a pair. The panful set down beside the altar is a reminder of yesterday: today takes up the same mission yesterday had. Carrying the rest away says the opposite. Every day starts fresh, as if nothing had been done yet. He warns against resting on what you have already done. That, he says, is why the ash is handled in older, plainer clothes. The past is not forgotten, but it moves to the background.
Was this even counted as real Temple service? The Gemara records a disagreement about that. The Rambam (Maimonides, who died in 1204) rules that it was: a daily commandment, and one of the services of the kohanim.
So the sources offer three answers: a clean altar, a humble kohen, and a new day that remembers the old one without living off it.
Sefer HaChinukh 131,Rabbeinu Bachya on Vayikra 6:3,Chovot HaLevavot, Gate of Humility, chapter 6,Rav Hirsch on Vayikra 6:3-4,Yoma 23b,Rambam, Laws of Daily Offerings 2:10People got hurt racing to do a mitzvah. What went wrong?
The race up the ramp ended badly. The Mishnah tells it in one line. Two kohanim were running even, one pushed the other, and he fell and broke his leg. The court saw that the race had become dangerous and ruled that the ash would be assigned only by lottery. It became the first of four lotteries held there.
The Gemara quotes an older teaching with a worse story. Two kohanim were racing up the ramp and one got ahead. The other took a knife and stabbed him in the heart. Rabbi Tzadok stood on the steps of the Temple hall and spoke, and all the people burst out crying. Then the father of the young kohen came and found his son still twitching. He said: "He is your atonement. My son is still twitching, so the knife has not become impure."
The teaching draws its own conclusion: the purity of a utensil weighed on them more than bloodshed. The Gemara then asks which side had gone wrong. Had they become too strict about purity, or too casual about a human life? Its answer: life had become cheap. Their care about purity was where it had always been.
Which story happened first? The Gemara works it out: the stabbing. At first the Sages treated it as a one-time event and left the race in place. The broken leg showed that the race was dangerous even when nobody meant harm. That is when they set up the lottery.
Look at the fix the Mishnah records. It is a change of system: a lottery in place of a race. And when the lottery made kohanim stop coming, because who says I will be the one picked, the Sages added a reward. Whoever won the ash also got to arrange the wood on the altar.
Both things are in the sources. There were kohanim who got up before dawn and ran for the chance to serve. And there was a day when that same competition ended in a killing.
Mishnah Yoma 2:1-2,Yoma 22a,Yoma 23a-23bIf the altar fire came from heaven, why did the kohanim have to add wood?
The passage ends with a fire that must never go out, and a kohen who adds wood to it "every morning." But the Torah also says that on the day Aharon first served at the altar, fire came out from before God and burned up the offering. So was it a miracle, or a fire that people kept going?
The Gemara says both. "Even though fire comes down from heaven, it is a mitzvah to bring fire from an ordinary source." The Rambam writes the law the same way.
The Gemara also reports that the miracle was not the same in every era. One teaching says the fire lay on the altar like a crouching lion. But Rabbi Chanina, the deputy High Priest, said: "I saw it, and it crouched like a dog." The Gemara explains that the lion was in the First Temple and the dog was in the Second.
Why would a miracle need firewood? The Sefer HaChinukh answers with a rule. When God does great miracles for people, He does them quietly, so that they look close to natural. His example is the splitting of the sea, where the Torah says God moved the water with a strong east wind all night. The wood on the altar, he says, was there to hide the miracle.
The Rambam describes three separate fires on top of the altar each day. One was for the offerings. One supplied coals for the incense. The third had nothing on it at all. It burned only to keep the command that there always be a fire. And putting out even one coal of the altar fire was punished with lashes.
The Sefer HaChinukh adds a second reason for the mitzvah. Fire, he says, is also one of the elements inside a person, the one that makes a person strong and gets a person moving and doing. Taking care of the altar's fire every day brings blessing to that fire. And blessing, for him, means the right amount: not too little, which leaves a person weak, and not too much, which burns him.
Vayikra 6:5 and 9:24,Yoma 21b,Rambam, Laws of Daily Offerings 2:1, 2:4, 2:6,Sefer HaChinukh 132