What Bible says about Judaism?

Many looks Judaism as a mother religion of Christianity, One of the reasons is Torah, Moses and other Prophets wrote the Old Testament as prophecy for Jesus Christ - Do not think that I have come to abolish the Law or the Prophets; I have not come to abolish them but to fulfill them - Matthew 5:17

But people are practicing Torah without Jesus Christ, Prophet Isaiah saying following Torah without Jesus Christ is basically making God himself to be tiered - 10.Again the Lord spoke to Ahaz: 11.Ask a sign of the Lord your[a] God; let it be deep as Sheol or high as heaven. 12.But Ahaz said, I will not ask, and I will not put the Lord to the test. 13.And he said, Hear then, O house of David! Is it too little for you to weary men, that you weary my God also? 14.Therefore the Lord himself will give you a sign. Behold, the virgin shall conceive and bear a son, and shall call his name Immanuel[Jesus Christ] - Isaiah 7:10-14

Their Law

Bible is very clear that the Moses' law was given to the rebellious people, and that law will not lead us into eternal life - 21.But the children rebelled against me. They did not walk in my statutes and were not careful to obey my rules, by which, if a person does them, he shall live; they profaned my Sabbaths. Then I said I would pour out my wrath upon them and spend my anger against them in the wilderness. 22.But I withheld my hand and acted for the sake of my name, that it should not be profaned in the sight of the nations, in whose sight I had brought them out. 23.Moreover, I swore to them in the wilderness that I would scatter them among the nations and disperse them through the countries, 24.because they had not obeyed my rules, but had rejected my statutes and profaned my Sabbaths, and their eyes were set on their fathers' idols. 25.Moreover, I gave them statutes[Laws] that were not good and rules by which they could not have life - Ezekiel 20:23-25

And Jesus Christ came to give new Law that will lead us into his eternal kingdom, If somebody follows Torah without Jesus Christ, the Torah will not be considered as "God's Law", but "Man's their own Law", and they can not go to God and say i followed your Law - 23.Whoever hates me hates my Father also. 24.If I had not done among them the works that no one else did, they would not be guilty of sin, but now they have seen and hated both me and my Father. 25.But the word that is written in their Law must be fulfilled: They hated me without a cause - John 15:23-25