"Watch your life and doctrine closely. Persevere in them, because if
you do, you will save both yourself and your hearers."
1 Timothy 4:16
The leader must also be prepared for each meeting. The leader must be
knowledgeable of the material to be covered as well as spiritually
prepared to lead people in a discovery of God. These are both important
because it is the leader's responsibility to make sure that there are no
bad teachings or bad interpretations of scripture.
If you are thinking about being a bible study leader then I commend you.
However, be prepared, it is not always as easy as it looks. You will be
disappointed, frustrated, maybe even angry at times. But, in the end, it
is all worth it to be able to see people come to a better understanding of
who God is and what Christianity is all about. Good luck and God be with
you.