Be friends with whoever you'd like to be friends with, but educate yourself on the truth. There are forces that wish to deceive and brainwash. Paul on several occasions admitted to deceiving jews so as to convert them to christianity.
Corinthians 9:20-22: To the Jews I became as a Jew, in order to win Jews; to those under the law I became as one under the law -- though not being myself under the law -- that I might win those under the law. To those outside the law I became as one outside the law -- not being without law toward God but under the law of Christ -- that I might win those outside the law. To the weak I became weak, that I might win the weak.
There is a staggering amount of "messianics," claiming to be jews, the real jews, looking to connect with and indoctrinate jews with christian beliefs, mainly that jc was and is the jewish moshiach, the messiah, the rebuilder of the jewish temple, and our connection for world peace.
This is simply not true.
First of all,
Judaism, unlike the Christianity, does not believe that the Messiah is Jesus. The noun moshiach (translated as messiah) annotatively means "annointed one;" it does not, however, imply "savior." The notion of an innocent, semi-divine being who will sacrifice himself to save us from the consequences of our own sins is a purely Christian concept that has no basis in Jewish thought or scripture.
In Judaic texts, the term messiah was used for all kings, high priests, certain warriors, but never eschatological figures. In the Tanach, moshiach is used 38 times: two patriarchs, six high priests, once for Cyrus, 29 Israelite kings such as Saul and David. Not once is the word moshiach used in reference to the awaited Messiah. Even in the apocalyptic book of Daniel, the only time moshiach is mentioned is in connection to a murdered high priest. The Dead Sea Scrolls, the Pseudepigrapha, and Apocrypha never mention the Messiah.
criterion for messiah, unfulfilled
"If a king arises from the House of David who meditates on the Torah, occupies himself with the commandments as did his ancestor King David, observes the commandments of the Written and Oral Law, prevails upon all Israel to walk in the way of the Torah and to follow its direction, and fights the wars of God, it may be assumed that he is the Messiah.
• If he does these things and is fully successful, rebuilds the Third Temple on its location, and gathers the exiled Jews, he is beyond doubt the Messiah. But if he is not fully successful, or if he is killed, he is not the Messiah."
Over 1,000 years before the attributed birth of the historical Jesus, it was recorded in the Tanach:
• Numbers 23:19: God is not a man, that He should be deceitful, nor the son of man, that He should repent. Would He say and not do, or speak and not confirm?
• Psalms 146:3: Do not rely on princes nor in the son of man, for he holds no salvation.
