The Bible is the complete, accurate, and inerrant Word of God. The Bible isn't just any old book, it is a living word that can be used for every single application of daily life. It contains commands, wisdom, stories of how God established his nation on earth (Israel), the gospel story, and the end times. 2 Timothy 3:16 says "All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness" You are encouraged to purchase a Bible or download one on your phone. Some great translations include the New King James Version (NKJV), the English Standard Version (ESV), the New International Version (NIV), or the New American Standard Bible (NASB). Some popular Bible apps are YouVersion, OliveTree, or the StudyBible.