Ezra 2:62

62 These sought their registration among those enrolled in the genealogies, but they were not found there, and so they were excluded from the priesthood as unclean;

Ezra 2:62 Meaning and Commentary

Ezra 2:62

These sought their register among those that were reckoned by
genealogy
To find their names written and registered there; for the Jews kept public registers of their priests, their descent, marriages, and offspring, that it might be known who were fit, and who not, to officiate as such:

but they were not found;
their names were not there, nor any account taken of them:

therefore were they, as polluted, put from the priesthood;
were not suffered to attend at the altar, and offer sacrifice, and enjoy the privileges belonging to that office.

Ezra 2:62 In-Context

60 the sons of Delai'ah, the sons of Tobi'ah, and the sons of Neko'da, six hundred and fifty-two.
61 Also, of the sons of the priests: the sons of Habai'ah, the sons of Hakkoz, and the sons of Barzil'lai (who had taken a wife from the daughters of Barzil'lai the Gileadite, and was called by their name).
62 These sought their registration among those enrolled in the genealogies, but they were not found there, and so they were excluded from the priesthood as unclean;
63 the governor told them that they were not to partake of the most holy food, until there should be a priest to consult Urim and Thummim.
64 The whole assembly together was forty-two thousand three hundred and sixty,
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.