Charles Ellicott Commentary 2 Chronicles 31:5

"And as soon as the commandment came abroad, the children of Israel gave in abundance the first-fruits of grain, new wine, and oil, and honey, and of all the increase of the field; and the tithe of all things brought they in abundantly." — 2 Chronicles 31:5 (ASV)

And ... came abroad. — Literally, And when the word broke forth — that is, spread abroad.

The children of Israel. — This refers to the people of Jerusalem, who in the chronicler’s day had a preeminent right to the name. (See the commentary on the next verse.) The firstfruits were for the priests (Numbers 18:12 and following, where the oil, wine, and wheat are specified).

And the tithe ... abundantly. — This was for the Levites (Numbers 18:21–24).