Why is Bible study important?

Bible study is important because it helps you to grow in your walk with God.
II Timothy 2:15 commands us to "Study to show thyself unto God, a workmanthat needeth not to be ashamed, rightly dividin the word of truth (KJV)." So, we should also study the Bible because we are commanded to by God.
Another verse that discusses this is I Thessalonians 4:11 which says "And that ye study to be quiet, to do your own business, and to work your own hands, as we commanded you;" This tells us to study the word in order to live a life pleasing to God, to help us mind our own business, and because it reminds us to work for a living.
Plus,Bible study helps us to memorize Scripture, to be prepared to share Christ with others, and to apply the Word to our daily lives.
So if you have not studied your Bible any, than start now!