2 Kings 23:21

And the king commandeth the whole of the people, saying, 'Make ye a passover to Jehovah your God, as it is written on this book of the covenant.'

Deuteronomy 16:1-8

Observe the month of Abib -- and thou hast made a passover to Jehovah thy God, for in the month of Abib hath Jehovah thy God brought thee out of Egypt by night;

Exodus 12:3-20

speak ye unto all the company of Israel, saying, In the tenth of this month -- they take to them each man a lamb for the house of the fathers, a lamb for a house.

Leviticus 23:5-8

in the first month, on the fourteenth of the month, between the evenings, is the passover to Jehovah;

Numbers 9:2-5

'Also, the sons of Israel prepare the passover in its appointed season;

Numbers 28:16-25

And in the first month, in the fourteenth day of the month, is the passover to Jehovah;

2 Chronicles 35:1-19

And Josiah maketh in Jerusalem a passover to Jehovah, and they slaughter the passover-offering on the fourteenth 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
And Josiah maketh in Jerusalem a passover to Jehovah, and they slaughter the passover-offering on the fourteenth of the first month,

As it is written

Exodus 12:3
speak ye unto all the company of Israel, saying, In the tenth of this month -- they take to them each man a lamb for the house of the fathers, a lamb for a house.
Leviticus 23:5
in the first month, on the fourteenth of the month, between the evenings, is the passover to Jehovah;
Numbers 9:2
'Also, the sons of Israel prepare the passover in its appointed season;
Numbers 28:16
And in the first month, in the fourteenth day of the month, is the passover to Jehovah;
Deuteronomy 16:1
Observe the month of Abib -- and thou hast made a passover to Jehovah thy God, for in the month of Abib hath Jehovah thy God brought thee out of Egypt by night;