We read in Numbers that God begins the organizational process for the Levite clan, including what family camps where, and what each family's roles are.
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Hebrews 10:26-39 - The Scariest Verse for Christians
29:18

Ezra 6:1-13 - God Has the Right to Preserve His Word
27:13

Hebrews 10:19-25 - The Major Church Misconception Nearly Every Christian Believes
28:29