2 Chronicles 29:33

Overview - 2 Chronicles 29
Hezekiah's good reign.
He restores religion.
He exhorts the Levites.
12 They sanctify themselves, and cleanse the house of God
20 Hezekiah offers solemn sacrifices, wherein the Levites are more forward than the priests.
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2 Chronicles 29:33  (King James Version)
And the consecrated things were six hundred oxen and three thousand sheep.

the consecrated
It is probable that the consecrated things denote the peace offerings and thank offerings.