Leviticus 23:39

“Also in the fifteenth day of the seventh month, etc.] The month Tisri or September, the same month, and the same day of the month before observed; only another end and use of this feast is remarked, which was to give thanks for the fruits of the earth gathered in, as follows: when ye have gathered in the fruit of the land; the barley, wheat, oil and wine, and all others, this being now autumn, when the several fruits were ripe and gathered: ye shall keep a feast unto the Lord seven days; not different from that before mentioned, but the same, one design of which is here suggested, to give thanks for the fruits of the earth: hence this feast is sometimes called the feast of ingathering,…”

“Also - Surely. The mode in which the Feast of Tabernacles is here reintroduced, after the mention of it in Leviticus 23:34-36, may suggest that this passage originally formed a distinct document. The fruit of the land - i. e. the produce, including the grain, the olives, the vintage and the fruits of all kinds. The time of year so indicated would answer in the holy land to the beginning of October. See Exodus 23:16 note. return to 'Top of Page'”

“This is no addition of a new, but only a repetition of the former injunction, with a more particular explication both of the manner and reason of the feast. The fruit - Not the corn, which was gathered long before, but that of the trees, as vines, olives, and other fruit - trees: which compleated the harvest, whence this is called the feast of in - gathering. Leviticus 23:40”

“23:39 after you have harvested all the produce: The Festival of Shelters was also called the Festival of Final Harvest (Exod 34:22) because all of the unharvested fruit and vegetables were gathered.”

“when: Lev 23:34; Exo 23:16; Deu 16:13 on the first: Lev 23:24, Lev 23:36 Leviticus 23:40”