As part of the temple and its services, and as part of Israel’s restoration to their land, the Lord wanted them to keep the Passover, but also notice the frequency of seven in the following passage,
“In the first month, on the fourteenth day of the month, you shall observe the Passover, a feast of seven days; unleavened bread shall be eaten. And on that day the prince shall prepare for himself and for all the people of the land a bull for a sin offering. On the seven days of the feast he shall prepare a burnt offering to the Lord, seven bulls and seven rams without blemish, daily for seven days, and a kid of the goats daily for a sin offering. And he shall prepare a grain offering of one ephah for each bull and one ephah for each ram, together with a hin of oil for each ephah. In the seventh month, on the fifteenth day of the month, at the feast, he shall do likewise for seven days, according to the sin offering, the burnt offering, the grain offering, and the oil” (Ezekiel 45.21–25).
Below you will see that I have a web site about sevens in the Bible. I am tracing the use of sevens throughout the Bible. Sign up at that site, and you will get an e-mail once every week or two. God loves the number seven.
The Passover symbolized a great event in Israel’s history, reminding them of their deliverance from bondage. Jesus is our Passover, reminding us of our deliverance from the bondage of sin.