Matthew Poole and continuators on Exodus 29:12

12 And thou shalt take of the bloud of the bullock, and put it upon the horns of the altar with thy finger, and pour all the blood beside the bottom of the altar.

Not of incense, as some would have it, but of the burnt-offerings, as may appear, 1. because it was that altar at the bottom whereof the bloud was to be poured, as it is here expressed: but that was not done at the altar of Incense, as is evident and confessed. Compare Lev. 16. 18, &c. 2. it was that altar, upon which the parts of the sacrifices were burnt, as it here follows ver. 13. for there is no distinction here between the two altars. It is true, in the following sin-offerings of the Priests the blood was put upon the horns of the altar of incense, Lev. 4. 7. But it must be considered, 1. that the blood was not poured out at the bottom of that altar. 2. because Aaron and his sons were not yet compleat Priests, but private persons, and therefore did this at the same altar which the people used in their sin offerings, Lev. 4. 25, 30.

Marginal references: chap. 27. 2. and 30. 2.