Jezekiel 45:21

21 And in the first , on the fourteenth of the month, ye shall have the feast of the passover; seven days shall ye eat unleavened bread.

Jezekiel 45:21 In-Context

19 And the priest shall take of the blood of the atonement, and put it on the thresholds of the house, and upon the four corners of the temple, and upon the altar, and upon the thresholds of the gate of the inner court.
20 And thus shalt thou do in the seventh month; on the first of the month thou shalt take a rate from each one; and ye shall make atonement for the house.
21 And in the first , on the fourteenth of the month, ye shall have the feast of the passover; seven days shall ye eat unleavened bread.
22 And the prince shall offer in that day a calf for a sin-offering for himself, and the house, and for all the people of the land.
23 And for the seven days of the feast he shall offer as whole-burnt-offerings to the Lord seven calves and seven rams without blemish daily for the seven days; and a kid of the goats daily for a sin-offering, and a meat-offering.

The Brenton translation of the Septuagint is in the public domain.