Leviticus 23:34 - Matthew Poole's English Annotations on the Holy Bible

Of tabernacles, i.e. of tents, or booths, or arbours. This feast was appointed principally to remind them of that time when they had no other dwellings in the wilderness, as it is expressed Leviticus 23:43, and to stir them up to bless God as well for the gracious conduct and protection then afforded them, as for their more commodious and secure habitations now given them; and secondarily, to excite them to gratitude for all the fruits of the year newly ended, which were now completely brought in, as may be gathered from Leviticus 23:39 Exodus 23:16 Deuteronomy 16:13,14. See an instance of this feast Nehemiah 8:16.