דברי הימים א, פרק כ״ט, פסוק ח׳

The preparations for building the Temple required a vast gathering of valuable raw materials. Anyone who possessed stones, specifically precious and special stones, brought them forward as donations [מצודת דוד, ביאור שטיינזלץ]. These valuable items were formally dedicated to the treasury meant for the construction of the Temple [מצודת דוד].

To ensure proper handling, these materials were placed under the direct responsibility of an official named Yechiel the Gershonite. He served as the appointed overseer of the Temple treasuries, tasked with accepting these voluntary gifts. It was Yechiel who personally received the stones from the donors and physically deposited them into the treasury [מצודת דוד, ביאור שטיינזלץ]. His authority in this role was well established, as earlier records detail how members of his family were officially entrusted with guarding and managing the treasuries of the House of God [רש״י].