Was the incense just air freshener for the Temple?
Picture the Temple on an ordinary day. Many animals were slaughtered there every day, cut up and burned. The Rambam (Maimonides, who died in 1204) says the obvious thing in his Guide for the Perplexed, his book of philosophy: left as it was, the place would have smelled like a slaughterhouse.
So, he writes, the Torah commanded incense twice a day, morning and afternoon, to make the place smell good, along with the clothes of everyone who served there. Then he adds a second point. Smell changes how people feel: "The soul opens up to a good smell and leans toward it, and it pulls away from a bad smell and runs from it." A Temple that stank would have lost people's respect.
Rabbeinu Bachya (a Torah commentator in Spain, around 1300) refused to accept this. He calls it a "weak reason," and his proof is in the Torah itself. Right after the recipe verses you say here, the Torah forbids making this formula for yourself. Whoever makes it in order to smell it is cut off from the people. Nobody gets that for copying an air freshener.
He was building on the Ramban (Nachmanides, Spain, died 1270), who writes that the incense was burned "for the honor of God" and ties it to the secret Moshe was given, that incense stops a plague. Both of them speak of the incense as having a secret, something a practical reason does not reach.
Rabbeinu Bachya is also fair to the Rambam. He says the Rambam was pushed to this answer by the path he had taken with the rest of the mitzvot. And the Rambam does give his own reason for the ban, in the same chapter: the smell should be met only in the Temple, so that it moves people more there.
Long before this argument, King David used the incense as his picture of what he wanted his own prayer to be: "Let my prayer stand before You like incense." The two views stand side by side. Both are part of the tradition.
Rambam, Guide for the Perplexed 3:45 (Ibn Tibbon's Hebrew),Rabbeinu Bachya on Shemot 30:1,Shemot 30:37-38,Ramban on Shemot 30:1,Tehillim 141:2The incense killed people and it saved people. Which is it?
The incense has a frightening record in the Torah. Aharon's sons Nadav and Avihu put incense in their fire pans and brought "a foreign fire, which He had not commanded them." Fire came out and killed them. Later, 250 men who joined Korach's rebellion each brought a pan of incense, and fire consumed them too.
The next day the same thing saved lives. A plague broke out, Aharon ran into the crowd with a pan of incense, and the plague stopped.
Rashi brings an explanation for why the plague was stopped with incense, of all things. The people had been muttering about it: "It is a deadly poison. Nadav and Avihu died through it. The 250 men were burned through it." So God said: you will see that it stops a plague. It is the sin that kills.
Look at what the deaths have in common. Nadav and Avihu did something God had not commanded. Korach's men were not kohanim, and the Torah says afterward that their fire pans were hammered into a cover for the altar as a reminder: nobody outside Aharon's family should come forward to burn incense. And in the Torah, the verse right after the incense altar passage you read here says: do not offer "foreign incense" on it.
Centuries later a king made the same move. Divrei HaYamim (Chronicles, the last book of Tanach) says that when King Uzziyahu grew strong, his heart grew proud, and he walked into the Sanctuary to burn incense himself. The kohen Azaryahu and eighty other kohanim told him: this is not yours to do. He raged at them with the incense pan in his hand, and tzara'at, a skin affliction, broke out on his forehead. He had it until the day he died.
So which is it? In the explanation Rashi brings, the incense was never the killer. It stops plagues. Each of the deaths came when someone took the incense in a way, or as a person, that God had not commanded.
Vayikra 10:1-2,Bamidbar 16:35 and 17:3-13,Rashi on Bamidbar 17:13,Shemot 30:9,Divrei HaYamim II 26:16-21People say reading this passage protects you. Is it a magic formula?
The claim is real, and it is old. The Zohar calls it a standing decree before God: whoever looks into the incense passage and reads it every day will be saved from sorcery, from accidents, from bad thoughts, from harsh judgment and from plague, and will not be harmed all that day.
More than 400 years ago, Seder HaYom (the book by Rabbi Moshe ben Machir, printed in 1599, where Modeh Ani first appears) quoted these lines and added advice. A person who is worried for himself should write out the whole incense passage on kosher parchment, in the script of a Torah scroll, and read it morning and evening with great focus. "And I guarantee it," he writes. If you have ever seen the incense passage written on parchment, this book is where that advice is written.
Now read the conditions. They are in the same sentences. The Zohar's promise ends: "and he needs to put his mind to it." A little further on it says that a person whom judgment is chasing needs this incense "and to return before his Master," and it calls the incense a help. Seder HaYom says the same: by an easy thing a person can be saved from a great deal, but in the end he has to read it with focus and a whole mind.
Notice also what is missing. Neither of these passages mentions getting rich. The Gemara does link the incense to wealth, but it says so about the kohen who burned the real incense in the Temple. A promise of wealth for reading the passage does appear elsewhere. The Kaf HaChaim (a Sephardic law commentary, early 1900s) records one.
So is it a formula? Not by its own terms. A formula works whether you mean it or not, and both sources say this does not. What is left is a promise with a condition attached: the words have to be meant.
Zohar, Parashat Vayakhel,Seder HaYom, Order of Priestly Service,Yoma 26a,Kaf HaChaim, Orach Chaim 132:23