Comentario sobre Exodo 30:9

לא תעלו עליו YE SHALL NOT OFFER ON IT — on it, i. e. on this altar, but you may offer on the copper altar (cf. Menachot 50b),

YE SHALL NOT BRING UP ‘KTORETH ZARAH’ (STRANGE INCENSE) THEREON — “any incense brought as a freewill offering; for all [offerings of incense] are ‘strange’ to [this altar] except this one [prescribed here].” This is Rashi’s language. But Onkelos rendered ktoreth zarah: ktoreth busmin nuchra’in (“the burning of aromatics which are of strange components,”) and he did not translate it nuchritha “strange incense” [as Rashi interpreted it]. By this translation Onkelos wanted to explain that the sense of the verse is that he should not offer an incense of any other components except those prescribed as He commanded.²⁴⁷This is identical with Ibn Ezra’s interpretation of the verse. Ramban, however, called attention to Onkelos’ text because it required an explanation as mentioned. Similarly, if one were to add to the prescribed composition any other components one would transgress this negative commandment.
Ki Thisa

קטורת זרה,”alien incense.” Rashi understands this to mean that even similar incense offered as a free-willed donation, is considered “alien,” and as such carries a severe penalty. Onkelos translates the verse as referring to spices not listed in Parshat Ki Tissa that begins forthwith. The prohibition of changes in the composition of the spices includes even adding an additional spice to the ones the Torah authorized and whose proportions the Torah specified. (30,22-38)

Upon this altar. But on the copper altar, you may bring it.

V. 9. קטרת זרה. Jede andere, als diese hier vorgeschriebene Darbringung von Räucherwerk ist als זרה zu begreifen (Menachot 50 a u. b). Es ist damit jede Willkür in Bildung des höchsten Lebensideals ausgeschlossen. Es gibt somit nicht ein höchstes Lebensideal. Es gibt nur das höchste Lebensideal. Nur das vollständigste Aufgehen in den ausgesprochenen göttlichen Willen, mit Beseitigung aller Subjektivität, nur das Aufgehen in den im ארון העדות bezeugten Willen Gottes ist בניחוח לד׳ Und ebenso sind alle anderen Opfer, עולה מנחה נסכים, von diesem Altare ausgeschlossen. Alle anderen Opfer sind teils nur partieller, teils nur vorbereitender Bedeutung in Verhältnis zu der Ganzheit und Vollendung, deren Ausdruck der מזבח הקטרת geweiht ist.

קטרת זרה, “alien incense;” any incense which is not paid for by the congregation as a whole, even if paid for out of the High Priest’s personal funds, was prohibited. This was one of the sins committed by Nadav and Avihu, Aaron’s sons, each of whom had taken his own personal pan and offered incense paid for out of their own pockets. This is (one of the reasons) why they were so harshly punished. An alternate explanation: “alien incense,” is any incense that does not exactly correspond to the instructions given in the Torah concerning of which spices and how much of each it was to consist.

קטרת זרה STRANGE INCENSE — any incense brought as a freewill offering; all of them (all offerings of incense) are “strange” to it (to the altar) except this prescribed here.

Neither burnt-offering nor meal-offering. . . Rashi is explaining that the לא at the beginning of the verse refers also to the burnt-offerings [and meal-offerings]. It means, “And neither burnt-offerings nor meal-offerings.”

ועלה ומנחה means, nor burnt offering nor meal-offering. The עולה is an offering of an animal or bird; מנחה is one of bread.