Is it permissible to read bible?
The Messenger of Allah (ﷺ) said: Whatever the people of the Book tell you, do not verify them, nor falsify them, but say: We believe in Allah and His Apostle. If it is false, do not confirm it, and if it is right, do not falsify it.
Sunan Abi Dawud 3644
Narrated from Jaabir ibn ‘Abdullah (may Allah be pleased with him) that ‘Umar ibn al-Khattaab (may Allah be pleased with him) came to the Prophet (blessings and peace of Allah be upon him) with some written material he had got from one of the people of the Book. He read it to the Prophet (blessings and peace of Allah be upon him), and he got angry and said: “Are you confused (about your religion), O son of al-Khattaab? By the One in Whose hand is my soul, I have brought it (the message of Islam) to you clear and pure. Do not ask them about anything, lest they tell you something true and you disbelieve it, or they tell you something false and you believe it. By the One in Whose hand is my soul, if Moosa were alive, he would have no option but to follow me.”
Narrated by Ahmad (14736); classed as hasan by al-Albaani in Irwa’ al-Ghaleel, 6/34
Is it not sufficient for them that We have sent down to you the Book (the Quran) which is recited to them? Verily, herein is mercy and a reminder (or an admonition) for a people who believe”
Yet people is those who are well versed in knowledge, who use these books to debate with the Jews and Christians, and to establish proof against them.