'First' in the Bible

And my God put into my heart to gather together the nobles, and the rulers, and the people, that they might be reckoned by genealogy. And I found the book of the genealogy of them that came up at the first, and I found written therein:

And Ezra the priest brought the law before the assembly, both men and women, and all that could hear with understanding, upon the first day of the seventh month.

Also day by day, from the first day unto the last day, he read in the book of the law of God. And they kept the feast seven days; and on the eighth day was a solemn assembly, according unto the ordinance.