'Feast' in the Bible

In the first month, on the fourteenth day of the month, you are to have the Passover, a feast of seven days; unleavened bread is to be your food.

And on the seven days of the feast he is to give a burned offering to the Lord, seven oxen and seven sheep without any mark on them, every day for seven days; and a he-goat every day for a sin-offering.

In the seventh month, on the fifteenth day of the month, at the feast, he is to give the same for seven days; the sin-offering, the burned offering, the meal offering, and the oil as before.