2 Chronicles 29:17

to sanctify … so they sanctified Two periods of eight days each were spent in "sanctifying," the courts apparently occupying eight days and the house itself eight days.

in the sixteenth day The LXX. translators read τῇ ἡμέρᾳ τῇ τρισκαιδεκάτῃ, i.e. on the thirteenth day, perhaps because the fourteenthday of the first month was the Day of the Passover, a day on which no work could be done.