Parallel
Exodus 12:42
Brenton's English Septuagint · Berean Standard Bible
It is a watch kept to the Lord, so that he should bring them out of the land of Egypt; that very night is a watch kept to the Lord, so that it should be to all the children of Israel to their generations.
Because the LORD kept a vigil that night to bring them out of the land of Egypt, this same night is to be a vigil to the LORD, to be observed by all the Israelites for the generations to come.