You may not eat within your gates the tithe of your grain or of your wine or of your oil, or the firstborn of your herd or of your flock, or any of your vows that you vow, or your freewill-offerings, or the contribution of your hand.
English: “And the firstborn” — It was taught: R’ Shimon said: What does this come to teach us?
On the daf / in context: R’ Shimon questions the necessity of the detailed list, since the categories were already enumerated earlier; the answer will be that each item generates its own specific prohibition and liability.
Type of Learning
Derash on the verse (Sifrei) — the purpose of the detailed enumeration.
What Is Learned
The detailed listing of each category is required in order to establish independent prohibitions and liabilities for each.