'First Day' in the Bible

From the first day of the seventh month they have begun to cause burnt-offerings to ascend to Jehovah, and the temple of Jehovah hath not been founded,

And the sons of the removal do so, and Ezra the priest, and men, heads of the fathers, for the house of their fathers, are separated, even all of them by name, and they sit on the first day of the tenth month, to examine the matter;

and they finish with all the men who have settled strange women unto the first day of the first month.