TT #64 · Parshas Shemini · Aliyah 3 · Passuk 10
Chabad.org — Vayikra Chapter 10 with Rashi
English: “To distinguish between the holy and the profane”: these are laws of valuations, dedications, vows, and consecrated property; “between the impure and the pure” refers to the laws of impurity and purity.
Kerisos 13b.
E-Daf.com — Kerisos 13b (Tsurras Hadaf)
Definition by enumeration — the categories of sacred and profane, pure and impure, are identified through the Torah’s paired distinctions.
The Torah’s call to distinguish between sacred and ordinary matters is applied to the laws of dedications and valuations, while the distinction between impure and pure refers to the laws of ritual purity and impurity.