Would someone concisely list why Jews do not believe in Islam? Is their faith considered monotheistic?

second question: jews and christians argue about which day is the Sabbath, i understand where the jewish sabbath came from, and supposedly the christain sabbath came from "God rested on the seventh day".  Is that part fabricated by man?

and explain to me your Hoy Day on Friday is it like a sabbath?

Salam alaikom sister. Well, I dont know exactly what the sabath means or why it is celebrated, but I do know that in Islam for sure we dont believe that God rested on the seventh day. We believe that God doesnt need rest, He is all powerful.

The Jews are monotheists, why dont they accept Islam, I guess because of two reasons. Jesus Christ and Mohammed peace be upon them. They still dont accept Jesus as the Christ they were waiting for, and Mohammed as a prophet.

Allah knows best, inshAllah the brothers and sisters here will help us more.

song of songs chapter 5 verse 5 says

machamadim zehdoodi yishrayee baina jarusalem.

machamad-im. im is  aplural of respect, we are left with machamad. when translating from hebrew to arabic the ch becomes the arabic h. mahamad. in english the verse says and he is altogether lovely instead of he is Machamad or mahamad.

The song of songs in hebrew is called shir hashirim. The song of songs, or the song of Hashir. Who is Hashir? Prophet Mohammed said that one of his names was Hashir.

Let's see what classical Jewish scholars had to say about this book (song of songs/shir hashirim):
"The whole world is not worth the day on which the Song of Songs was given to Israel; for all the writings are holy, but the Song of Songs is the holiest of the holy."
[Rabbi Akiva (died AD 135), Tractate of Yaddayim (3:5), Mishna]
"...and the book itself as an allegory depicting in great detail the experiences of the nation in its relations with its God from the Exodus down to *THE COMING OF THE MESSIAH AND THE BUILDING OF THE THIRD TEMPLE.* This in general is also the interpretation of the Midrash Rabbah and such famous scholars as Saadia ben Joseph, Rashi, and Ibn Ezra, although they differ considerably among themselves in details."
[The Interpreter's Bible Encyclopedia]

In another book of the Old Testament, Haggai, we read:
Haggai 2:7 "And I will shake all nations, AND THE DESIRE OF ALL NATIONS SHALL COME: and I will fill this house with glory saith the Lord of hosts."

In place of "desire of all nations", the Hebrew text uses one single word: "CHMD" which is pronouncable as "ACHMAD" (which is "AHMAD" in Arabic). Thus, the translation would be, "And I will shake all nations, AND AHMAD SHALL COME: and I will fill this house with glory saith the Lord of hosts."

http://www.jews-for-allah.org/Jews-and-Muslims-Agree/jewishsabbath-islamsabbath.htm - http://www.jews-for-allah.org/Jews-and-Muslims-Agree/jewishs abbath-islamsabbath.htm

 This is a very nice link explaining Sabbath in Islam and judaism, the site is made by a former Rabbi who became Muslim al hamdulilah.

Friday is the day which involves a prayer made all together. This is an important social affair. But verses about friday doesn't declare it as a resting day. As stated in the surah with the same name, after the prayer Muslims should go round to seek for their share. That can be taken as "back to work" I know that Friday is an official "off day" in some muslim countries and don't want to go beyond my limits of knowledge. Of course Allah knows best.

Surah 9 verse 30 drives attention to another point about Jews. That is their attribution of a son to Allah as some of the Christians did. This is contrary to the acceptance of "one and only God" in Islam as is the "selected nation" paradigm.

Some of the references I read about the subject say that Jews were expecting a prophet but from their nation. That is why they denied Mohammad (sav).

Stories of Moses (as), and David (as) occupy a considerable place in Koran and give idea about Jewish attitude against the prophets.

As we all believe Allah knows best.