Midrash sobre Cantar de los Cantares 2:11

“For, behold, the winter is past, the rain is over and gone” (Song of Songs 2:11).
“For, behold, the winter is past,” these are the four hundred years that were decreed upon our ancestors in Egypt.¹⁰⁷See Genesis 15:13. “The rain is over and gone,” these are the two hundred and ten years.¹⁰⁸This was the actual length of the exile and enslavement in Egypt. Is the rain not identical to the winter?¹⁰⁹In Israel, winter is the rainy season. Rabbi Tanḥuma said: The primary trouble [of the winter] is the rain. Similarly, the main enslavement of Israel was eighty-six years, from the time Miriam was born. vaymareru] their lives” (Exodus 1:14), as Miriam is an expression of bitterness [maror]>.

... Another explanation. “…to you it shall be the first ...” (Exodus 12:2) This is referring, so to speak, to the Holy One who is called first, as it says “I am first and I am last…” (Isaiah 44:6) And Zion is called first, as it says “As a Throne of Glory, exalted from the beginning, so is the place of our Sanctuary.” (Jeremiah 17:12) And Esau is called first, as it says “And the first one emerged ruddy…” (Genesis 25:25) The Messiah is called first, as it says “The first one to Zion, behold, behold them…” (Isaiah 41:27) Let the Holy One, who is called first, come and build the Holy Temple which is called first, and exact retribution from Esau who is called first. And let the Messiah, who is called first, come in the first month, as it says “This month shall be to you the head of the months…” (Exodus 12:2)