The Jews as stated by others have what we call the Old Testament, the first 5 books, Genesis, Exodus, Leviticus, Deuteronomy and Numbers are the 'Books of the Law'
There are three main types of Jews, the ones that follow the original scripture, the G-d given scriptures, the ones who are like Christians who are not born again, and the ones who have found Jesus, their Messiah, Yeshua ha Mashiach.
I remember probably 25 years ago going to a large property on East Cliff in Bournemouth, it was a fellowship meeting with Messianic Jews, what a Blessed evening it was.
That night they had Helen Shapiro there to do a talk on her life, for those who are not aware she was a singer in the UK around 1960', one of her hits was 'Walking back to Happiness' which she sang after the talk. She confirmed how at 16 years of age as Jew she hates the song, but later found the Jewish Messiah. PTL
At the meeting with other messianic Jews and other Christians they danced the Jewish dances, which are like folk dances.
It was a wonderful evening, my friend and I felt so blessed to meet them and share with them. but there were two things that really stood out that night, what a lovely, warm friendly bunch they were, and it was truly clear that the Jews who know the Old Testament come alive when they find Jesus, Yeshua, their promised Messiah.
It was a long time ago but still as vividly clear in my mind today,
Salvation is of the Jews we should be so thankful for their errors, but pray for them also.
John 4:19-22 (NKJV)
19 The woman said to Him, "Sir, I perceive that You are a prophet.
20 Our fathers worshiped on this mountain, and you Jews say that in Jerusalem is the place where one ought to worship."
21 Jesus said to her, "Woman, believe Me, the hour is coming when you will neither on this mountain, nor in Jerusalem, worship the Father.
22 You worship what you do not know; we know what we worship, for salvation is of the Jews.
When the Jews rejected their Messiah, salvation was offered to the Gentile world, although the olive branch was broken it can be grafted back in, we too are grafted in and can easily be cut out. We are to remember where we come from and be grateful. God never forgets His children, but they did provoke Him to jealousy.
Romans 11:11-26 (NKJV)
11 I say then, have they stumbled that they should fall? Certainly not! But through their fall, to provoke them to jealousy, salvation has come to the Gentiles.
12 Now if their fall is riches for the world, and their failure riches for the Gentiles, how much more their fullness!
13 For I speak to you Gentiles; inasmuch as I am an apostle to the Gentiles, I magnify my ministry,
14 if by any means I may provoke to jealousy those who are my flesh and save some of them.
15 For if their being cast away is the reconciling of the world, what will their acceptance be but life from the dead?
16 For if the firstfruit is holy, the lump is also holy; and if the root is holy, so are the branches.
17 And if some of the branches were broken off, and you, being a wild olive tree, were grafted in among them, and with them became a partaker of the root and fatness of the olive tree,
18 do not boast against the branches. But if you do boast, remember that you do not support the root, but the root supports you.
19 You will say then, "Branches were broken off that I might be grafted in."
20 Well said. Because of unbelief they were broken off, and you stand by faith. Do not be haughty, but fear.
21 For if God did not spare the natural branches, He may not spare you either.
22 Therefore consider the goodness and severity of God: on those who fell, severity; but toward you, goodness, if you continue in His goodness. Otherwise you also will be cut off.
23 And they also, if they do not continue in unbelief, will be grafted in, for God is able to graft them in again.
24 For if you were cut out of the olive tree which is wild by nature, and were grafted contrary to nature into a cultivated olive tree, how much more will these, who are natural branches, be grafted into their own olive tree?
25 For I do not desire, brethren, that you should be ignorant of this mystery, lest you should be wise in your own opinion, that blindness in part has happened to Israel until the fullness of the Gentiles has come in.
26 And so all Israel will be saved, as it is written: "The Deliverer will come out of Zion, And He will turn away ungodliness from Jacob;
We must not be antisemitic in any way against God's children, what ever we do against God's children we do against God.
Matthew 25:40-46 (NKJV)
40 And the King will answer and say to them, 'Assuredly, I say to you, inasmuch as you did it to one of the least of these My brethren, you did it to Me.'
41 Then He will also say to those on the left hand, 'Depart from Me, you cursed, into the everlasting fire prepared for the devil and his angels:
42 for I was hungry and you gave Me no food; I was thirsty and you gave Me no drink;
43 I was a stranger and you did not take Me in, naked and you did not clothe Me, sick and in prison and you did not visit Me.'
44 Then they also will answer Him, saying, 'Lord, when did we see You hungry or thirsty or a stranger or naked or sick or in prison, and did not minister to You?'
45 Then He will answer them, saying, 'Assuredly, I say to you, inasmuch as you did not do it to one of the least of these, you did not do it to Me.'
46 And these will go away into everlasting punishment, but the righteous into eternal life."