Shifting focus to the guilt-offering (the "asham"), and the fact that it too is to be slaughtered in the northern part of the Temple courtyard - along with the blood collection and sprinkling and so on. And, again, the details are derived from the Torah's verses and inferences from one verse to another. Also, the guilt-offering slaughtered by the person who is coming off tzara'at also needs to be in the north of the Temple courtyard. And this derivation is then used to understand certain exegetical rules that apply to elsehwere in the Torah as well. The claim is that the Torah is written in this way to make sure that we learn the halakhah in this way.