generally, this would be a holding place for the Sons of Zadok, bēn Zadok (Ezekiel 40:46), which would be cognate with the Sons of Righteousness, which was a zeitgeisty term in 1st Century Palestine.

The Hebrew Bible does NOT contain the Second Temple-coined term צְדוּקִים, Ṣəḏūqīm, see “Sadduccees”