Nehemiah 8:14

And they found written in the law which the Lord had commanded by Moses ,.... The children of Israel, to be observed by them; either by hearing it read the day before, or by conversation with Ezra, they perceived it was enjoined in the law, particularly in Leviticus 23:39

that the children of Israel should dwell in booths, in the feast of the seventh month : which was the same month, and this the second day of it, and therefore the time drew near for keeping it; for it was to begin the fifteenth.