They have tempered their scripture and have introduced the lies in their book. They have killed prophets who tried to lead them to the right path. In short, jews are the most cursed nation and we are told to stay away from them and do not believe in what they say, because they play tricks with iman.
ALLAH swt says in Quran: 2:111
“They say, verily none shall enter paradise, except they who are Jews or Christians: This is their wish. Say, produce your proof of this, if ye speak truth.”
The above verse says that it is the jews and Christians who propose their own wishes as the command or will of ALLAH. While doing so, they forget to realize that they are only wronging themselves. Telling lies in the name of ALLAH swt will only do them harm.
Lies and tricks are part of their nature not because they were created so, but because they tried to play those tricks with ALLAH swt and his messengers. They are so liars that they tell plain lies on their own religion which they should rather protect because they feel proud of it.
ALLAH swt says in Quran: 3:093
“All food was permitted unto the children of Israel, except what Israel forbad unto himself, before the Pentateuch was sent down. Say unto the Jews, bring hither the Pentateuch and read it, if ye speak truth.”
A well known hadith recorded by Ahmed says:
Narrated by Ibn’ Abbas "A group of Jews came to Allah's Prophet and said, `Talk to us about some things we will ask you and which only a Prophet would know.' He said, `Ask me about whatever you wish. However, give your pledge to Allah, similar to the pledge that Ya`qub took from his children, that if I tell you something and you recognize its truth, you will follow me in Islam.' They said, `Agreed.' The Prophet said, `Ask me about whatever you wish.' They said, `Tell us about four matters: 1. What kinds of food did Isra'il prohibit for himself 2. What about the sexual discharge of the woman and the man, and what role does each play in producing male or female offspring 3. Tell us about the condition of the unlettered Prophet during sleep, 4. And who is his Wali (supporter) among the angels' The Prophet took their covenant that they will follow him if he answers these questions, and they agreed. He said, `I ask you by He Who sent down the Tawrah to Musa, do you not know that Isra'il once became very ill When his illness was prolonged, he vowed to Allah that if He cures His illness, he would prohibit the best types of drink and food for himself. Was not the best food to him camel meat and the best drink camel milk' They said, `Yes, by Allah.' The Messenger said, `O Allah, be Witness against them.' The Prophet then said, `I ask you by Allah, other than Whom there is no deity (worthy of worship), Who sent down the Tawrah to Musa, do you not know that man's discharge is thick and white and woman's is yellow and thin If any of these fluids becomes dominant, the offspring will take its sex and resemblance by Allah's leave. Hence, if the man's is more than the woman's, the child will be male, by Allah's leave. If the woman's discharge is more than the man's, then the child will be female, by Allah's leave.' They said, `Yes.' He said, `O Allah, be Witness against them.' He then said, `I ask you by He Who sent down the Tawrah to Musa, do you not know that the eyes of this unlettered Prophet sleep, but his heart does not sleep' They said, `Yes, by Allah!' He said, `O Allah, be Witness.' They said, `Tell us now about your Wali among the angels, for this is when we either follow or shun you.' He said, `My Wali (who brings down the revelation from Allah) is Jibril, and Allah never sent a Prophet, but Jibril is his Wali.' They said, `We then shun you. Had you a Wali other than Jibril, we would have followed you.”
This verse and hadith shows that jews came and tested Muhammad s.a.w.w for HIS prophet hood and asked HIM s.a.w.w question which He answered even than they took a point to reject His prophet hood because they are proud and in their pride, they have lost even the fear of ALLAH swt.
In Quran ALLAH swt says: 3:184
“Then if they reject you, so were Messengers rejected before you, who came with Al-Bayinat and the Scriptures and the Book of Enlightenment.”
So, Allah swt says that if these people reject our beloved Messanger s.a.w.w, they have done this with previous messengers too. We know what they tried to do with Prophet Esa a.s.
If we read Quran and Sunnah and than see the general attitude of jews, they do not like those people who guide them to the right path. They know that they are been told truth but to admit it is not their courage.
Volume 9, Book 92, Number 447:
Narrated Abu Huraira: “While we were in the mosque, Allah's Apostle came out and said, "Let us proceed to the Jews." So we went out with him till we came to Bait-al-Midras. The Prophet stood up there and called them, saying, "O assembly of Jews! Surrender to Allah (embrace Islam) and you will be safe!" They said, "You have conveyed Allah's message, O Aba-al-Qasim" Allah's Apostle then said to them, "That is what I want; embrace Islam and you will be safe." They said, "You have conveyed the message, O Aba-al-Qasim." Allah's Apostle then said to them, "That is what I want," and repeated his words for the third time and added, "Know that the earth is for Allah and I want to exile you from this land, so whoever among you has property he should sell it, otherwise, know that the land is for Allah and His Apostle." “