Deuteronomy 16:5-9

LXX2012(i) 5 you shall not have power to sacrifice the passover in any of the cities, which the Lord your God gives you. 6 But in the place which the Lord your God shall choose, to have his name called there, you shall sacrifice the passover at even at the setting of the sun, at the time when you came out of Egypt. 7 And you shall boil and roast and eat it in the place, which the Lord your God shall choose; and you shall return in the morning, and go to your house. 8 Six days shall you eat unleavened bread, and on the seventh day is a holiday, a feast to the Lord your God: you shall not do in it any work, save what must be done by any one. 9 Seven weeks shall you number to yourself; when you have begun [to put] the sickle to the corn, you shall begin to number seven weeks.