John Gill Commentary 1 Chronicles 23:14

"But as for Moses the man of God, his sons were named among the tribe of Levi." — 1 Chronicles 23:14 (ASV)

Now concerning Moses the man of God
Raised up by him as a prophet, admitted to great familiarity with him, a lawgiver from him, and the ruler and guide of Israel under him through the wilderness:

his sons were named of the tribe of Levi ;
were only common Levites; Moses had no ambition to gratify; he sought no honour for his posterity; the civil government was left to Joshua, and the priesthood to Aaron.