Chronicles I 23:3

3 And the Levites numbered from thirty years old and upward; and their number by their polls amounted to thirty and eight thousand men.

Chronicles I 23:3 Meaning and Commentary

1 Chronicles 23:3

Now the Levites were numbered from the age of thirty years, and
upward
So they were numbered in the days of Moses, and by his order, and so they were now at first; though afterwards there was a new reckoning of them, ( 1 Chronicles 23:24 )

and their number by their posts;
or, according to their heads:

man by man, was thirty and eight thousand;
which vastly exceeds the number in the times of Moses; see ( Numbers 4:47 Numbers 4:48 ) , but then those above fifty years of age were not numbered, as they now might; since their work in the temple would be much more easy, no burdens to carry, as the ark, the vessels

Chronicles I 23:3 In-Context

1 And David was old and full of days; and he made Solomon his son king over Israel in his stead.
2 And he assembled all the chief men of Israel, and the priests, and the Levites.
3 And the Levites numbered from thirty years old and upward; and their number by their polls amounted to thirty and eight thousand men.
4 Of the overseers over the works of the house of the Lord twenty-four thousand, and six thousand scribes and judges;
5 and four thousand door-keepers, and four thousand to praise the Lord with instruments which he made to praise the Lord.

The Brenton translation of the Septuagint is in the public domain.