Exodus 12:42

It is a night of observance to Jehovah, because of their being brought out from the land of Egypt: that same night is an observance to Jehovah for all the children of Israel in their generations.

Deuteronomy 16:1-6

Keep the month of Abib, and celebrate the passover to Jehovah thy God; for in the month of Abib Jehovah thy God brought thee forth out of Egypt by night.

Exodus 12:14

And this day shall be unto you for a memorial; and ye shall celebrate it as a feast to Jehovah; throughout your generations as an ordinance for ever shall ye celebrate it.

Exodus 13:10

And thou shalt keep this ordinance at its set time from year to year.

Treasury of Scripture Knowledge

Summary

It is a night to be much observed unto the LORD for bringing them out from the land of Egypt: this is that night of the LORD to be observed of all the children of Israel in their generations.

A night to be much observed

Bible References

A night to be much observed

Exodus 12:14
And this day shall be unto you for a memorial; and ye shall celebrate it as a feast to Jehovah; throughout your generations as an ordinance for ever shall ye celebrate it.
Deuteronomy 16:1
Keep the month of Abib, and celebrate the passover to Jehovah thy God; for in the month of Abib Jehovah thy God brought thee forth out of Egypt by night.