Do vague prophecies justify the belief that the Bible is God inspire, or are there other proofs?

The various prophecies do not justify the belief that the Bible is the word of God, but the prophets of the Old Testament were certainly inspired men. They tried to convey to the Hebrew people the concept of the one God, a God of all nations, and the so-called prophecies were often admonitions directed at the Hebrew people. The Old Testament scriptures are records of writings done by religious leaders during the Babylonian captivity, in an effort to boost the moral of the Hebrews. These writings and others were later assembled into a book of supposedly infallible teachings.