The seventh month in the Hebrew calendar, known as Tishri, holds significant importance in the biblical tradition, marked by several key festivals and prescribed offerings. These offerings are detailed primarily in the books of Leviticus and Numbers, which outline the specific sacrifices and rituals that the Israelites were commanded to observe.

Feast of Trumpets (Rosh Hashanah):

The seventh month begins with the Feast of Trumpets, also known as Rosh Hashanah. This day is a sacred assembly marked by the blowing of trumpets and is considered a day of rest. The prescribed offerings for this day are detailed in Numbers 29:1-6:

"On the first day of the seventh month, you are to hold a sacred assembly; you must not do any regular work. This is a day for you to sound the trumpets. As a pleasing aroma to the LORD, you are to present a burnt offering of one young bull, one ram, and seven male lambs a year old, all unblemished, together with their grain offerings of fine flour mixed with oil—three-tenths of an ephah with the bull, two-tenths of an ephah with the ram, and one-tenth of an ephah with each of the seven lambs. Include one male goat as a sin offering to make atonement for you. These are in addition to the monthly and daily burnt offerings with their grain offerings and drink offerings, as specified. They are a pleasing aroma, an offering made by fire to the LORD."

Day of Atonement (Yom Kippur):

The Day of Atonement, or Yom Kippur, falls on the tenth day of the seventh month. It is a solemn day of fasting, prayer, and repentance. The offerings for this day are outlined in Leviticus 16 and Numbers 29:7-11. The high priest would enter the Holy of Holies to make atonement for the sins of the people. Numbers 29:7-11 specifies:

"On the tenth day of this seventh month you are to hold a sacred assembly and humble yourselves; you must not do any work. Present as a pleasing aroma to the LORD a burnt offering of one young bull, one ram, and seven male lambs a year old, all unblemished, along with their grain offerings of fine flour mixed with oil—three-tenths of an ephah with the bull, two-tenths of an ephah with the ram, and one-tenth of an ephah with each of the seven lambs. Include one male goat as a sin offering, in addition to the sin offering for atonement and the regular burnt offering with its grain offering and their drink offerings."

Feast of Tabernacles (Sukkot):

The Feast of Tabernacles, or Sukkot, begins on the fifteenth day of the seventh month and lasts for seven days, followed by an eighth day of sacred assembly. This festival commemorates the Israelites' journey through the wilderness and is a time of rejoicing and thanksgiving. The offerings for each day of the feast are detailed in Numbers 29:12-38, with specific sacrifices for each day, decreasing in number as the festival progresses.

"On the fifteenth day of the seventh month, you are to hold a sacred assembly; you must not do any regular work, and you are to celebrate a feast to the LORD for seven days. Present as a burnt offering, an offering made by fire, a pleasing aroma to the LORD, thirteen young bulls, two rams, and fourteen male lambs a year old, all unblemished, along with their grain offerings of fine flour mixed with oil—three-tenths of an ephah with each of the thirteen bulls, two-tenths of an ephah with each of the two rams, and one-tenth of an ephah with each of the fourteen lambs. Include one male goat as a sin offering, in addition to the regular burnt offering with its grain offering and drink offering."

Each subsequent day of the feast sees a reduction in the number of bulls offered, culminating in the eighth day, which is a closing assembly with its own set of offerings.

The prescribed offerings for the seventh month underscore the themes of repentance, atonement, and thanksgiving, reflecting the Israelites' covenant relationship with God and their dependence on His provision and forgiveness. These rituals served as a means of maintaining holiness and fellowship with the LORD, emphasizing the importance of obedience and reverence in worship.