Name Zadok

Hebrew (צדוק) name means - "justification; just, faithful, righteous".

Zadok - was a priest of descended from Eleazar the son of Aaron, who aided king David during the revolt of his son Absolom, and was consequently instrumental in bringing king Solomon to throne. After Solomon's building of The First Temple in Jerusalem, Zadok was the first High Priest to serve there.
The prophet Ezekiel extols the sons of Zadok as staunch opponents of paganism during the era of its pagan worship and indicates their birthright to unique duties and privileges in the future Third Temple.