Sorry about the sound- talk about warfare. Listen closely or read it ..Shalom
For the beginning is the end, and the end in the beginning.
.” Esther 9:27

JPS Tanakh 1917
the Jews ordained, and took upon them, and upon their seed, and upon all such as joined themselves unto them, so as it should not fail, that they would keep these two days according to the writing thereof, and according to the appointed time thereof, every year;

Young's Literal Translation
the Jews have established and received upon them, and upon their seed, and upon all those joined unto them, and it doth not pass away, to be keeping these two days according to their writing, and according to their season, in every year and year;
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At Purim, the Bne Israel took upon themselves not just to observe Purim as a holiday, but to accept again the Torah from Sinai. Thus we renew the covenant when we celebrate Purim.
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Our Sages moved Purim to Adar Sheni in order to juxtapose these two festivals with a common theme: The renewal of the covenant. They reaffirmed the Torah’s relevance to all times, to all places, under all conditions. The renewal of the covenant commemorated on Purim came on the heels of the Babylonian exile. Purim katan, in Adar rishon, takes on renewed significance in light of this historic juxtaposition. Additionally, both Purim and Passover recount a deliverance of the Jewish people.
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Isaiah 41:4
Who hath wrought and done it, calling the generations from the beginning? I YEHOVAH the first, and with the last; I am he.
Revelation 1:8
"I am the Alpha and the Omega," says the Lord God, who is and was and is to come--the Almighty. ( ALEPH & TAW )

&

Isaiah 48:12
"Listen to Me, O Jacob, and Israel, whom I have called: I am He; I am the first, and I am the last
Revelation 21:6
And He told me, "It is done! I am the Alpha and the Omega, the Beginning and the End. To the thirsty I will give freely from the spring of the water of life.
http://www.ecmarsh.com/lxx/Esther/index.htm
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MIQEDEM - Chasdei Adonai מקדם - חסדי ה

https://www.youtube.com/watch?v=7Ykn6bRHNcw&list=PLU-murLz1EPIT-f5NF-Op_1JU4PAi-nJG&index=4