When God measures a man he puts the tape around the heart, not the head.
Some people expect the door of opportunity to be opened with an electric eye.
The Bible is the divine means of developing spiritual maturity. There is no other way.
Don't put eggs under dead chickens.
If you are not thinking correctly, you are not living correctly. What you believe will determine how you behave.
So the first reason for studying Scripture is that it is a means of spiritual growth. There is none apart from the Word. It is God's primary tool to develop you as an individual.