You must keep it until the fourteenth day of the month, when the whole assembly of the congregation of Israel will slaughter the animals at twilight.

Exodus 12:14
And this day will be a memorial for you, and you are to celebrate it as a feast to the LORD, as a permanent statute for the generations to come.

Exodus 12:17
So you are to keep the Feast of Unleavened Bread, for on this very day I brought your divisions out of the land of Egypt. You must keep this day as a permanent statute for the generations to come.

Exodus 12:47
The whole congregation of Israel must celebrate it.

Exodus 16:1
On the fifteenth day of the second month after they had left the land of Egypt, the whole congregation of Israel set out from Elim and came to the Desert of Sin, which is between Elim and Sinai.

Exodus 16:12
"I have heard the grumbling of the Israelites. Tell them, 'At twilight you will eat meat, and in the morning you will be filled with bread. Then you will know that I am the LORD your God.'"

Exodus 19:1
In the third month, on the same day of the month that the Israelites had left the land of Egypt, they came to the Wilderness of Sinai.

Leviticus 23:5
The Passover to the LORD begins at twilight on the fourteenth day of the first month.

Numbers 9:1
In the first month of the second year after Israel had come out of the land of Egypt, the LORD spoke to Moses in the Wilderness of Sinai:

Numbers 9:2
"The Israelites are to observe the Passover at its appointed time.

Numbers 9:11
Such people are to observe it at twilight on the fourteenth day of the second month. They are to eat the lamb, together with unleavened bread and bitter herbs;

Numbers 28:16
The fourteenth day of the first month is the LORD's Passover.

Deuteronomy 16:4
No leaven is to be found in all your land for seven days, and none of the meat you sacrifice in the evening of the first day shall remain until morning.

Deuteronomy 16:6
You must only offer the Passover sacrifice at the place the LORD your God will choose as a dwelling for His Name. Do this in the evening as the sun sets, at the same time you departed from Egypt.

2 Chronicles 35:1
Then Josiah celebrated the Passover to the LORD in Jerusalem, and the Passover lamb was slaughtered on the fourteenth day of the first month.

Ezra 6:19
On the fourteenth day of the first month, the exiles kept the Passover.

And you shall keep it up until the fourteenth day of the same month: and the whole assembly of the congregation of Israel shall kill it in the evening.