All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
Any Jewish or Christian woman married to a Muslim man and who dies before becoming Muslim, Paradise is forbidden to her. The fact that her husband is Muslim does not help her as mentioned in the Quran in the verse in which Allah Says (what means): {And no bearer of burdens shall bear the burden of another.} [Quran 6:164]
Allah mentioned in the Quran that the wives of both Noah and Lut were from the people of Hellfire. The fact that they were the wives of two Prophets did not help them.
It is known that Paradise is exclusively for true believers. Allah Says (what means): {Perhaps those who disbelieve will wish that they had been Muslims.} [Quran 15:2]
Abu Hurayrah narrated that the Prophet said: “(I swear) By Him in Whose hand is the life of Muhammad, he who amongst the community of Jews or Christians hears about me, but does not affirm his belief in that which I have been sent with and dies in this state (of disbelief), except that he shall be one of the denizens of Hellfire.” [Muslim]
Zayd said: “We asked ‘Ali (the fourth Caliph): “What did the Prophet tell you to convey during Hajj? He said: “He told me to convey four things: (among which is) “No unbelieving soul will enter Paradise…”
Allah knows best.