Exodus 12:42 in the World English Bible
It is a night to be much observed to the LORD for bringing them out from the land of Egypt. This is that night of the LORD, to be much observed by all the children of Israel throughout their generations.
Context
41 And it came to pass at the end of the four hundred and thirty years, even the selfsame day it came to pass, that all the hosts of the LORD went out from the land of Egypt.
42 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.
43 And the LORD said unto Moses and Aaron, This is the ordinance of the passover: There shall no stranger eat thereof: