1 Chronicles 23:3

Overview - 1 Chronicles 23
David in his old age makes Solomon king.
The number and distribution of the Levites.
The families of the Gershonites.
12 The sons of Kohath.
21 The sons of Merari.
24 The office of the Levites.
Treasury of Scripture Knowledge

1 Chronicles 23:3  (King James Version)
Now the Levites were numbered from the age of thirty years and upward: and their number by their polls, man by man, was thirty and eight thousand.

the Levites
Numbers 4:2 Numbers 4:3 Numbers 4:23 Numbers 4:30 Numbers 4:35 Numbers 4:43 Numbers 4:47

thirty and eight
Numbers 4:48