Exodus 12:42

ליל שמרים IT WAS NIGHT OF WATCHING [UNTO THE LORD] — a night which the Holy One, blessed be He, was watching for and looking forward to, that He might fulfill His promise להוציאם מארץ מצרים TO BRING THEM OUT FROM THE LAND OF EGYPT. הוא הלילה הזה לה IT IS THIS NIGHT OF THE LORD — it is the night of which He said to Abraham, “On this night will I redeem your children” (Mekhilta; cf. Rashi on Genesis 39:11). שמרים לכל בני ישראל לדרתם [IT IS A NIGHT] OF PROTECTION FOR ALL THE CHILDREN OF ISRAEL THROUGHOUT THEIR GENERATIONS — this night is protected, and comes as such from ages past, against all destructive forces, as it is said, (v. 33) “And He will not permit the destroyer [to enter your houses]” (Pesachim 109b; Rosh Hashanah 11b).

לֵ֣יל שִׁמֻּרִ֥ים הוּא֙ לַֽיהֹוָ֔ה לְהוֹצִיאָ֖ם מֵאֶ֣רֶץ מִצְרָ֑יִם הֽוּא־הַלַּ֤יְלָה הַזֶּה֙ לַֽיהֹוָ֔ה שִׁמֻּרִ֛ים לְכׇל־בְּנֵ֥י יִשְׂרָאֵ֖ל לְדֹרֹתָֽם׃ {פ}

It is a night of watchfulness to the Lord for bringing them out from the land of Miżrayim: this is the Lord’s watchnight, for all the children of Yisra᾽el in their generations.