All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness, that the man of God may be complete, thoroughly equipped for every good work.
2 Tim 3:16-17
Now if anybody needs to know why they should read the Bible here is the proof. The key phrase would be "that the man of God may be complete, thoroughly equipped for every good work". Everything we need is in the Bible. We must spend time in the Word to see what God has for us. As the Bible says, all scripture is inspired by God so it all applies to us, not just the words that we would like to pick and choose. Think of the word profitable - this means we need the word of God in our life to make us better in all things - when we are not spending time in the Bible we are the losers. So be a big winner this week and spend time with God in His word, He has something special that He wants to share with you.