Matthew Henry on Numbers 29:12–end
Soon after the day of atonement, that day in which men were to afflict their souls, followed the feast of tabernacles, in which they were to rejoice before the Lord; for those that sow in tears shall soon reap in joy. To the former laws about this feast, which we had, Lev 23:34, etc., here are added directions about the offerings by fire, which they were to offer unto the Lord during the seven days of that feast, Lev 23:36. Observe here, 1. Their days of rejoicing were to be days of sacrifices. A disposition to be cheerful does us no harm, nor is any bad symptom, when it is so far from unfitting us for the duties of God's immediate service that it encourages and enlarges our hearts in them.…
Read the whole note in the consoleJamieson-Fausset-Brown on Numbers 29:35
On the eighth day ye shall have a solemn assembly--The feast of tabernacles was brought to a close on the eighth day, which was the great day (Joh 7:37). Besides the common routine sacrifices, there were special offerings appointed for that day though these were fewer than on any of the preceding days; and there were also, as was natural on that occasion when vast multitudes were convened for a solemn religious purpose, many spontaneous gifts and services, so that there was full scope for the exercise of a devout spirit in the people, both for their obedience to the statutory offerings, and by the presentation of those which were made by free will or in consequence of vows.
John Gill on Numbers 29:36
But ye shall offer a burnt offering,.... Which was the same that was offered on the first and tenth days of this month, Numbers 29:2 and the meat and drink offerings for each of the creatures were the same, as often expressed; and on this day a goat for a sin offering was also offered, besides the daily sacrifice, and what went along with that.
John Calvin on Numbers 29:12–end
And on the fifteenth, day. Amongst their festivals this last was the chief [240] in which they dwelt in tabernacles for seven days; for whereas in the Passover they commemorated the night in which they came forth free from the plagues of Egypt, by dwelling in tabernacles they embraced the whole forty years in which their fathers in the desert experienced the constant and consummate bounty of God. That solemn convention, too, availed for another present purpose, i.e., of thanksgiving to God for the ingathering of the harvest. Hence it was that they offered sacrifices every day and in greater number: on the first day, thirteen bullocks, two rams, and fourteen lambs; on the second, twelve bullo…