In Numbers 1:12, God commands Moses to take a census of the Israelites, specifically focusing on the tribe of Benjamin. This census was important for organizing the people according to their clans and families for various purposes, such as military arrangements and distribution of land. It demonstrates God's orderliness and attention to detail in preparing the Israelites for their journey and settlement in the Promised Land. The specificity of counting each tribe and clan highlights the individual significance of each person within the community of God's chosen people. This verse underscores the importance of organization and unity in fulfilling God's purposes.