Our best example of how to live the Christian life is by looking at Jesus Himself. After He was baptized, during His wilderness time, the enemy tried to tempt Him. Each time Jesus response was with a verse from the Old Testament. Each time Jesus left the enemy no room to go any further in the attack with the verse that He used.
When we hide God's Word in our heart the Spirit is with us and brings it to mind when we need it. Paul tells us, "All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness, that the man of God may be complete, equipped for every good work." (2 Timothy 3:16-17 ESV).
This is another reason to be in the Bible daily. It is like you spiritual vitamin.