Exodus 12:18

⁵In the first month, on the fourteenth day of the month in the evening, is the LORD’s Passover. ⁶On the fifteenth day of the same month is the feast of unleavened bread to the LORD. Seven days you shall eat unleavened bread. ⁷In the first day you shall have a holy convocation. You shall do no regular work. ⁸But you shall offer an offering made by fire to the LORD seven days. In the seventh day is a holy convocation. You shall do no regular work.’”

¹⁵“‘Seven days you shall eat unleavened bread; even the first day you shall put away yeast out of your houses, for whoever eats leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.

¹⁶“‘In the first month, on the fourteenth day of the month, is the LORD’s Passover. ¹⁷On the fifteenth day of this month shall be a feast. Unleavened bread shall be eaten for seven days. ¹⁸In the first day shall be a holy convocation. You shall do no regular work, ¹⁹but you shall offer an offering made by fire, a burnt offering to the LORD: two young bulls, one ram, and seven male lambs a year old. They shall be without defect, ²⁰with their meal offering, fine flour mixed with oil. You shall offer three tenths for a bull, and two tenths for the ram. ²¹You shall offer one tenth for every lamb of the seven lambs; ²²and one male goat for a sin offering, to make atonement for you. ²³You shall offer these in addition to the burnt offering of the morning, which is for a continual burnt offering. ²⁴In this way you shall offer daily, for seven days, the food of the offering made by fire, of a pleasant aroma to the LORD. It shall be offered in addition to the continual burnt offering and its drink offering. ²⁵On the seventh day you shall have a holy convocation. You shall do no regular work.

¹The LORD spoke to Moses and Aaron in the land of Egypt, saying, ²“This month shall be to you the beginning of months. It shall be the first month of the year to you.