2 Chronicles 29:17

17 They began the consecration on the first day of the first month, and by the eighth day of the month they reached the portico of the LORD. For eight more days they consecrated the temple of the LORD itself, finishing on the sixteenth day of the first month.

Read 2 Chronicles 29:17 Using Other Translations

Now they began on the first day of the first month to sanctify, and on the eighth day of the month came they to the porch of the LORD: so they sanctified the house of the LORD in eight days; and in the sixteenth day of the first month they made an end.
They began to consecrate on the first day of the first month, and on the eighth day of the month they came to the vestibule of the LORD. Then for eight days they consecrated the house of the LORD, and on the sixteenth day of the first month they finished.
They began the work in early spring, on the first day of the new year, and in eight days they had reached the entry room of the LORD ’s Temple. Then they purified the Temple of the LORD itself, which took another eight days. So the entire task was completed in sixteen days.

What does 2 Chronicles 29:17 mean?

John Gill's Exposition of the Bible
2 Chronicles 29:17

Now they began on the first day of the first month to
sanctify
Either of the reign of King Hezekiah, or rather of the year; the month Ab or Nisan, as the Targum expresses it: and on the eighth of the month came they to the porch of the Lord;
they seem to have begun cleansing the inner part of the temple first, and so came forward until they came to the porch which led into it: so they sanctified the house of the Lord in eight days;
the holy place, and it may be the most holy place, and the court of the priests: and on the sixteenth day of the first month they made an end;
it took them eight days more to cleanse the outward porch, and the buildings and chambers belonging to the temple; according to Jarchi, it required so much time, because Ahaz had framed pictures of idols upon the walls of the temple, which could not be defaced sooner.

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