The Bible is very important because without it i. there would be no Ask religious questions; ii. the religion industry would collapse, causing unemployment; iii. religious people would need to rely on logic instead of quoting God; iv. there would be no cornucopia of inanities from which to pluck funny misquotes.
There are probably other reasons too, but I can't think of any just now.
Religious texts are important to the religions they represent because they instruct the believer on how to perform there worship and possess all the rites, rituals, and fables that the particular religion deem important in conveying their message. To anyone that does not follow that religion these religious texts are outdated as far as moral instructions and carry no importance whatsoever, aside from the impact these religions have played in history.
It is the word of God. It teaches of us how God created Earth and what happened as mankind grew. Now why are here so many questions about this? It is quite simple that God is all we have and anyone who questions that will have a tough time on judgement day.
There is nothing in the bible that is of any importance to mankind. If every single word from all the bibles were to be blotted from human memory at this very instant, nothing of importance would be lost from the wisdom of mankind, and rather only the useful will remain.
Let's find out for ourselves. Has the Bible taught us how to invent, to build bridges, or ships or anything of use? Did we get our ideas of government, of religious freedom, of liberty of thought and expression, from the Bible? Is the Mosaic Code as wise and humane as the code of any civilized nation? Did we get from Bible a hint of any science? Is there in the "divine volumes" a word, a line that has added to the wealth, the intelligence and the happiness of mankind? Is any of the books of the Bible as entertaining as "Robinson Crusoe," "Travels of Gulliver", or "Peter Wilkins and His Flying Wife"? Did the author of Genesis know as much about nature as Humboldt, or Darwin, or Haeckel? Were the writers of Kings and Chronicles as great historians as Gibbon and Draper? Is Jeremiah or Habakkuk equal to Dickens or Thackeray? Can the authors of Job and the Psalms be compared with Voltaire? Does the story of Jesus' self-sacrifice surpass in grandeur, in passion and in brevity than that of Bruno's? Did even Jesus meet his death with more passion, more charity, more calmness, and more perfectly than Socrates did? Is the bible in intelligence, in the force and beauty of expression, in breadth and scope of thought, in aptness of wisdom, in knowledge of human brain and heart, in tragedy and hopes, even a billion light-years nearer than one single creation of Shakespeare?
All that is necessary to convince any unprejudiced man that the Bible is simply and purely of human and barbarian production -- is to read it. If one reads the bible as any other book; removing the blindfold of reverence from eyes; driving from heart the phantom of fear; pushing from brain the serpent of superstition -- and one will be ashamed to have supposed even for one moment that a being of infinite wisdom, goodness and love, to be the author of such ignorance, evil and of such hatred. Never has man in his ignorance, greed, fear, lust, vengeance, and falsehood, ever imagined a more filthy and vulgar literature than the bible.
The Bible tells us everything we need to know, about Creation, about Satan and his demons and how we inhabit demons through sin, and how Jesus came to save mankind from there sins,by accepting Jesus as our savior and repenting our sins.
The Bible is God's word. It is the direct way that God communicates with us. By reading the Bible daily and meditating on it, we will draw closer to our Creator.
For example, at Galatians 5:22,23 it describes the fruitage of the spirit. "On the other hand, the fruitage of the spirit is love, joy, peace, long-suffering, kindness, goodness, faith, mildness, self-control. Against such things there is no law." If we try to cultivate qualities such as these, we will be better people and the people around us will see that.
The Bible, the whole or in part, has been translated into some 1,800 languages. Its circulation totals in the billions. Says The World Book Encyclopedia: “The Bible is the most widely read book in history. It is probably also the most influential. More copies have been distributed of the Bible than of any other book. It has also been translated more times into more languages than any other book.”—(1984), Vol. 2, p. 219.
Bible prophecy explains the meaning of world conditions. Many world leaders acknowledge that mankind is on the brink of disaster. The Bible foretold these conditions long ago; it explains their meaning and what the outcome will be. (2 Tim. 3:1-5; Luke 21:25-31) It tells what we must do in order to survive the impending world destruction, with the opportunity to gain eternal life under righteous conditions here on earth.—Zeph. 2:3; John 17:3; Ps. 37:10, 11, 29.
It is God's message of salvation to humanity, like a personal letter from God to each person telling us all the great things He has done in the past, all that He does for us now, how much He loves us, how He wishes for us to come back to Him. It's not so much the words on the page that are important, but the living Word of God. There are many reasons why it's important, but the main reason is the good news of salvation.