| Barnes' Notes on the Bible An offering made by fire - See Leviticus 23:8. The succession of sacrifices prescribed in Numbers 29:12-38, which forms such a marked feature in the Feast of Tabernacles, tends to show the distinctness of the "solemn assembly" from the festal week.
Gill's Exposition of the Entire BibleSeven days ye shall offer an offering made, by fire unto the Lord,.... A burnt offering; what this was, and how many were offered on each day, see at large in Numbers 29:13, on the eighth day shall be an holy convocation unto you; as on the first day; See Gill on Leviticus 23:35, and ye shall offer an offering made by fire unto the Lord; which was different from that on all the other days, being one bullock only, &c. Numbers 29:35, it is a solemn assembly; of all the people, when they were gathered together before the Lord. Some render the word used a "restraint" or "detention", and interpret it of restraining or detaining them from servile work, as in the next clause; so Aben Ezra and Gersom; but this sense seems to make that clause unnecessary and is never used elsewhere where that is: ye shall do no servile work therein; as on the first day; See Gill on Leviticus 23:35.
Geneva Study BibleSeven days ye shall offer an offering made by fire unto the LORD: on the eighth day shall be an holy convocation unto you; and ye shall offer an offering made by fire unto the LORD: it is a {p} solemn assembly; and ye shall do no servile work therein. (p) Or, a day in which the people refrain from all work.
Wesley's Notes 23:36 Ye shall offer - A several - offering each day. The eighth day - Which though it was not one of the days of this feast strictly taken. Yet in a larger sense it belonged to this feast, and is called the great day of the feast, John 7:37. And so indeed it was, as for other reasons, so because, by their removal from the tabernacles into fixed habitations, it represented that happy time wherein their 40 years tedious march in the wilderness was ended with their settlement in the land of Canaan, which it was most fit they should acknowledge with such a solemn day of thanksgiving as this was.
King James Translators' Notessolemn...: Heb. day of restraint
Matthew Henry's Concise Commentary23:33-44 In the feast of Tabernacles there was a remembrance of their dwelling in tents, or booths, in the wilderness, as well as their fathers dwelling in tents in Canaan; to remind them of their origin and their deliverance. Christ's tabernacling on earth in human nature, might also be prefigured. And it represents the believer's life on earth: a stranger and pilgrim here below, his home and heart are above with his Saviour. They would the more value the comforts and conveniences of their own houses, when they had been seven days dwelling in the booths. It is good for those who have ease and plenty, sometimes to learn what it is to endure hardness. The joy of harvest ought to be improved for the furtherance of our joy in God. The earth is the Lord's, and the fullness thereof; therefore whatever we have the comfort of, he must have the glory of, especially when any mercy is perfected. God appointed these feasts, Beside the sabbaths and your free-will offerings. Calls to extraordinary services will not excuse from constant and stated ones. | 
