'First' in the Bible

And my God put it into my heart to get together the rulers and the chiefs and the people so that they might be listed by families. And I came across a record of the names of those who came up at the first, and in it I saw these words:

And Ezra the priest put the law before the meeting of the people, before the men and women and all those who were able to take it in, on the first day of the seventh month.

And day by day, from the first day till the last, he was reading from the book of the law of God. And they kept the feast for seven days: and on the eighth day there was a holy meeting, as it is ordered in the law.

As well as the first of our sons and of our cattle, as it is recorded in the law, and the first lambs of our herds and of our flocks, which are to be taken to the house of our God, to the priests who are servants in the house of our God:

And that we would take the first of our rough meal, and our lifted offerings, and the fruit of every sort of tree, and wine and oil, to the priests, to the rooms of the house of our God; and the tenth of the produce of our land to the Levites; for they, the Levites, take a tenth in all the towns of our ploughed land.

And Mattaniah, the son of Mica, the son of Zabdi, the son of Asaph, who had to give the first note of the song of praise in prayer, and Bakbukiah, the second among his brothers, and Abda, the son of Shammua, the son of Galal, the son of Jeduthun.