Targum su Esodo 12:42

Four nights are there written in the Book of Memorials before the Lord of the world. Night the first,--when He was revealed in creating the world; the second,--when He was revealed to Abraham; the third,--when He was revealed in Mizraim, His hand killing all the firstborn of Mizraim, and His right hand saving the firstborn of Israel; the fourth,--when He will yet be revealed to liberate the people of the house of Israel from among the nations. And all these are called Nights to be observed; for so explained Mosheh, and said thereof, It is to be observed on account of the liberation which is from the Lord, to lead forth the people of the sons of Israel from the land of Mizraim. This is that Night of preservation from the destroying angel for all the sons of Israel who were in Mizraim, and of redemption of their generations from their captivity.

It is a night to be observed and celebrated for the liberation from before the Lord in bringing forth the sons of Israel, made free from the land of Mizraim. Four nights are there written in the Book of Memorial. Night first; when the Word of the Lord was revealed upon the world as it was created; when the world was without form and void, and darkness was spread upon the face of the deep, and the Word of the Lord illuminated and made it light; and he called it the first night. Night second; when the Word of the Lord was revealed unto Abraham between the divided parts; when Abraham was a son of a hundred years, and Sarah was a daughter of ninety years, and that which the Scripture saith was confirmed,--Abraham a hundred years, can he beget? and Sarah, ninety year old, can she bear? Was not our father Izhak a son of thirty and seven years, at the time he was offered upon the altar? The heavens were (then) bowed down and brought low, and Izhak saw their realities, and his eyes were blinded at the sight, and he called it the second night. The third night; when the Word of the Lord was revealed upon the Mizraee, at the dividing of the night; His right hand slew the firstborn of the Mizraee, His right hand spared the firstborn of Israel; to fulfil what the Scripture hath said, Israel is My firstborn son. And he called it the third night. Night the fourth; when the end of the age will be accomplished, that it might be dissolved, the bands of wickedness destroyed and the iron yoke broken. Mosheh came forth from the midst of the desert; but the King Meshiha (comes) from the midst of Roma. The Cloud preceded that, and the Cloud will go before this one; and the Word of the Lord will lead between both, and they shall proceed together. This is the night of the Pascha before the Lord, to be observed and celebrated by the sons of Israel in all their generations.