What does Tosfot indicate about the word "כל" in Ma'aser?

Tosfot's commentary on the word "כל," which translates to "all" or "everything," highlights the inclusive nature of the term as it pertains to Ma'aser, or tithing. According to Tosfot, the implication of "כל" suggests that the obligation to give extends beyond mere agricultural income. It encompasses all forms of profits, emphasizing a comprehensive approach to tithing.

This understanding aligns with the broader Halachic perspective that encourages giving a percentage of various types of income, not just those derived from farming. The word "כל" is thus integral in illustrating the expectation that individuals are to consider all their earnings – be they from investments, business, or other streams of income – when calculating Ma'aser. This expansive interpretation is crucial for maintaining the principles of generosity and communal support which are foundational to the practice of tithing in Jewish law.