2 Kings 23:21

Then the king commanded all the people saying, “Celebrate the Passover to the Lord your God as it is written in this book of the covenant.”

Deuteronomy 16:1-8

“Observe the month of Abib and celebrate the Passover to the Lord your God, for in the month of Abib the Lord your God brought you out of Egypt by night.

Exodus 12:3-20

Speak to all the congregation of Israel, saying, ‘On the tenth of this month they are each one to take a lamb for themselves, according to their fathers’ households, a lamb for each household.

Leviticus 23:5-8

In the first month, on the fourteenth day of the month at twilight is the Lord’s Passover.

Numbers 9:2-5

“Now, let the sons of Israel observe the Passover at its appointed time.

Numbers 28:16-25

Then on the fourteenth day of the first month shall be the Lord’s Passover.

2 Chronicles 35:1-19

Then Josiah celebrated the Passover to the Lord in Jerusalem, and they slaughtered the Passover animals on the fourteenth day of the first month.

Treasury of Scripture Knowledge

Summary

And the king commanded all the people, saying, Keep the passover unto the LORD your God, as it is written in the book of this covenant.

Bible References

Keep

2 Chronicles 35:1
Then Josiah celebrated the Passover to the Lord in Jerusalem, and they slaughtered the Passover animals on the fourteenth day of the first month.

As it is written

Exodus 12:3
Speak to all the congregation of Israel, saying, ‘On the tenth of this month they are each one to take a lamb for themselves, according to their fathers’ households, a lamb for each household.
Leviticus 23:5
In the first month, on the fourteenth day of the month at twilight is the Lord’s Passover.
Numbers 9:2
“Now, let the sons of Israel observe the Passover at its appointed time.
Numbers 28:16
Then on the fourteenth day of the first month shall be the Lord’s Passover.
Deuteronomy 16:1
“Observe the month of Abib and celebrate the Passover to the Lord your God, for in the month of Abib the Lord your God brought you out of Egypt by night.