There are many reasons for reading God's Word regularly.
The Scripture can act as a warning to us. We tend to be impatient with those who try to warn us. The warnings in Scripture are designed for our own good, to protect us from harm and from doing what is foolish.
Obeying the teachings of Scripture brings rewards. Living in accordance with God's Word brings satisfaction even when it involves suffering and sacrifice on our part.
Psalm 19:11
Moreover by them is thy servant warned; in keeping them there is great reward.