1. RASHI METHOD: REFERENCES BRIEF EXPLANATION: Commentary on a verse is provided thru a cross-reference to another verse. The cross references can either provide (1a) further details, (1b) confirm citations, or (1c) clarify word meaning. This examples applies to Rashis Nu18-27a URL Reference: (c) http://www.Rashiyomi.com/w33n24.htm; Brief Summary: The statement that levite tithe tithe is similar to granary grain (Nu18-27) cross references (Nu18-12) requiring giving the first granary grain to priests.

Verse Nu18-27a discussing the requirement of levites to tithe their tithe for Priests states Thus speak to the Levites, and say to them, When you take of the people of Israel the tithes which I have given you from them for your inheritance, then you shall offer up an offering of it for the Lord, a tenth part of the And this your offering shall be reckoned to you, as though it were the grain of the threshing floor, and as the fullness of the winepress. Rashi clarifies the underlined words grain of the threshing floor, by referencing verse(s) Nu18-12, discussing the gifts given to priests which states All the best of the oil, and all the best of the wine, and of grain, the first fruits of them which they shall offer to the Lord, these have I given you. Hence the Rashi comment: The Levite's tithe'd tithe has the same status as the grain gift from Israelites to priests. As explicitly stated in Nu18-13 only ritually pure people may eat it (male or female). Furthermore as stated in Lv22-14 non-Priests who improperly eat these holy items pay a 25% fine.

Text of Target verse Nu18-27a	Text of Reference Verse Nu18-12
Thus speak to the Levites, and say to them, When you take of the people of Israel the tithes which I have given you from them for your inheritance, then you shall offer up an offering of it for the Lord, a tenth part of the ti And this your offering shall be reckoned to you, as though it were the grain of the threshing floor, and as the fullness of the winepress.	All the best of the oil, and all the best of the wine, and of grain, the first fruits of them which they shall offer to the Lord, these have I given you.
Rashi comments: The Levite's tithe'd tithe has the same status as the grain gift from Israelites to priests. As explicitly stated in Nu18-13 only ritually pure people may eat it (male or female). Furthermore as stated in Lv22-14 non-Priests who (accidentally) improperly eat these holy items pay a 25% fine.

Advanced Rashi: Note the unusual feature that Rashi cross references two verses: One verse indicates the requirement to eat the priestly gifts in ritual purity while the other verse indicates a 25% fine for (accidental) violation of the requirement.

The verse only states that the tithe of the tithe shall be reckoned to you as grain priestly gifts. It does not explicitly indicate the similarity - how is levite tithe similar to priestly gifts? Rashi has explained above that the similarity refers to the requirements and punishments of how the gifts may be eaten. The driving force for this aspect of Rashi comes from the style rule and will be revisited in rule #6 below.