Numbers 3:21 (KJV) states: "Of Gershon was the family of the Libnites, and the family of the Shimites: these are the families of the Gershonites."

The book of Numbers is the fourth book of the Hebrew Bible and the fourth of five books of the Torah. It is named after the census that was taken of the Israelites, as well as other numeric data found throughout the book. The general theme of Numbers is the journey of the Israelites from Mount Sinai to the borders of the Promised Land. The book recounts the various trials and tribulations the Israelites faced during their journey, as well as the laws and regulations given to them by God.

The verse 3:21 is part of a larger passage that details the responsibilities and duties of the Gershonites, who were one of the three main branches of the tribe of Levi. The Levites were the priestly class of the Israelites, and their duties included caring for the tabernacle and assisting the priests in their religious duties. The Gershonites were responsible for taking care of the curtains, coverings, and hangings of the tabernacle, as well as the cords and other equipment necessary for its assembly.

In this specific verse, the families of the Gershonites are mentioned: the Libnites and the Shimites. The mention of these families highlights the organization and structure of the Levites, as well as their importance in the religious and communal life of the Israelites. Each family had specific roles and responsibilities, and their precise duties were essential in maintaining the sanctity and function of the tabernacle.

The naming of the Gershonite families serves to emphasize the meticulous care and attention to detail required in the worship and service of God. Each family had a specific task, and their combined efforts ensured the proper functioning and maintenance of the tabernacle. This verse, therefore, underscores the importance of each individual's contribution to the larger community and the worship of God.

Symbolically, the Gershonites and their families represent the idea of specialized roles and responsibilities within a community. Just as each family had its designated tasks within the tabernacle, so too do individuals within a community have unique skills and talents that contribute to the overall well-being and functioning of the community. This verse encourages the recognition and appreciation of everyone's contributions, no matter how small or seemingly insignificant.

The context of this verse within the book of Numbers is significant. The meticulous detailing of the responsibilities of the Levites and their families reflects the organization and orderliness that were necessary for the Israelites to fulfill their role as the chosen people of God. The precise instructions given to the Levites also emphasize the importance of obedience and adherence to God's will. By meticulously following God's commands and fulfilling their duties, the Israelites demonstrated their commitment to their covenant with God.

In conclusion, Numbers 3:21 from the King James Version of the Bible provides a detailed account of the organization and responsibilities of the Gershonites, one of the branches of the tribe of Levi. This verse emphasizes the idea of specialized roles and contributions within a community, as well as the importance of meticulous attention to detail in the service of God. In its larger context, this verse also highlights the significance of obedience and commitment to God's will.