14 And they found written in the Law, which the Lord had commanded by Moses, that the children of Israel should dwell in booths during the feast of the seventh month, 15 and that they should announce and proclaim in all their cities and in Jerusalem, saying, "Go out to the mountain, and bring olive branches, branches of oil trees, myrtle branches, palm branches, and branches of leafy trees, to make booths, as it is written." 16 Then the people went out and brought them and made themselves booths, each one on the roof of his house, or in their courtyards or the courts of the house of God, and in the open square of the Water Gate and in the open square of the Gate of Ephraim. 17 So the whole assembly of those who had returned from the captivity made booths and sat under the booths; for since the days of Joshua the son of Nun until that day the children of Israel had not done so. And there was very great gladness. 18 Also day by day, from the first day until the last day, he read from the Book of the Law of God. And they kept the feast seven days; and on the eighth day there was a sacred assembly, according to the prescribed manner.
Matthew Henry's Commentary on Nehemiah 8:14-18
Commentary on Nehemiah 8:13-18
(Read Nehemiah 8:13-18)
They found written in the law about the feast of tabernacles. Those who diligently search the Scriptures, find things written there which they have forgotten. This feast of tabernacles was a representation of the believer's tabernacle state in this world, and a type of the holy joy of the gospel church. The conversion of the nations to the faith of Christ, is foretold under the figure of this feast, Zechariah 14:16. True religion will render us strangers and pilgrims upon earth. We read and hear the word acceptably and profitably, when we do according to what is written therein; when what appears to be our duty is revived, after it has been neglected. They minded the substance; else the ceremony had been of no use. They did it, rejoicing in God and his goodness. These are the means which the Spirit of God crowns with success, in bringing the hearts of sinners to tremble and to become humbled before God. But those are enemies to their own growth in holiness, who always indulge sorrow, even for sin, and put away from them the consolations tendered by the word and Spirit of God.