The "Feast of Harvest" is one of the names given to the Jewish holiday of Shavuot, which is also known as the "Feast of Weeks" or the "Festival of the Giving of the Torah". The name "Feast of Harvest" refers to the agricultural significance of the holiday, which marks the end of the spring barley harvest and the beginning of the summer wheat harvest in ancient Israel.
During the holiday, the Israelites would bring offerings of the first fruits of their harvest to the Temple in Jerusalem as a way of expressing gratitude to God for the bounty of the land. The holiday also has spiritual significance, as it commemorates the giving of the Torah to Moses on Mount Sinai and the establishment of the covenant between God and the Jewish people.
Today, Shavuot is celebrated by Jews around the world with special prayers, Torah readings, and festive meals featuring dairy foods such as cheesecake and blintzes. It remains an important holiday in the Jewish calendar, marking both the agricultural and spiritual aspects of Jewish life.