Zevachim 89 - Which Action is Preferred?
If there is a choice of two actions, one more sacred or more special than the other, the special one comes first. For example, the application of the sin-offering blood comes before the burnt-offering, because the sin-offering brings forgiveness. How is this derived?
The Torah said, "and the second bull you will take as a sin-offering." The word "second" is extra - we can count and know that it is the second - rather it teaches that it is brought second. On the other hand, it said, "one bull a sin-offering, another - a burnt-offering," so which one comes first? - Sin-offering, since it effects forgiveness, has its blood brought first. Burnt-offering, since it is burned completely, has its limbs burned first.
Art: Giotto Nicolo & Stefano da Ferrara Miretto - Act of Forgiveness
