Numbers 3:17 lists the names of the three sons of Levi: Gershon, Kohath, and Merari. This verse identifies the main family groups, or clans, that came from Levi, which are important for organizing the duties of the Levites in Israel’s religious life.
In the book of Numbers, God is instructing Moses about the organization of the Levites, who are set apart to serve in the tabernacle. By naming Gershon, Kohath, and Merari, Numbers 3:17 sets up the structure for how the Levite families will be assigned their specific roles and responsibilities in the following verses. This verse is foundational for understanding the later division of labor among the Levites.