The returnees to Zion recognized that a thriving spiritual center required steady financial backing. To ensure the continuous operation of the Temple and the well-being of its servants, the people established a fixed annual contribution. They accepted this financial pledge not merely as a civic duty, but as a binding religious obligation [מצודת דוד, ביאור שטיינזלץ]. By framing this duty conceptually as multiple Commandments rather than a singular one, a profound lesson is taught about the nature of giving. The virtue of charity and acts of kindness is considered equal in weight to all the Commandments combined. Furthermore, unlike other good deeds, the spiritual merit gained from charity is enduring; it is neither canceled nor erased even if a person later commits a sin [רס״ג, חומת אנך].
The specific amount pledged was a third of a shekel per year. Commentators differ on how to understand this sum. One approach suggests that this was a brand-new donation, added on top of the traditional half-shekel required by the Torah, simply to ensure that the Temple had an adequate budget for its growing needs [אבן עזרא, מצודת דוד, מלבי״ם]. Another perspective explains that the required donation amount naturally evolved over the generations [ביאור שטיינזלץ]. During this specific period, the standard coin was larger and held more value than the original biblical shekel. Consequently, one-third of this newer, larger coin was exactly equal in purchasing power to the original half-shekel used to buy public sacrifices [רלב״ג, מלבי״ם].
The ultimate purpose of these funds was to support the service in the House of God, financing the public sacrifices and all the necessary maintenance so that the daily worship would never be interrupted [רלב״ג, מצודת דוד]. To further support this goal, the people instituted additional practical arrangements. They cast lots to ensure a steady supply of wood for the altar at designated times. They also committed to bringing the mandatory gifts for the priests and Levites, such as the first fruits, offerings, and tithes, directly to the Temple. This logistical change was crucial, as it guaranteed that the priests and Levites would have a reliable food supply, freeing them from having to travel around to the threshing floors to collect their portions. With their physical needs met, they could remain entirely devoted to their holy work [רלב״ג].