1) Hell?
2) The dangers of taking communion unworthily?
3) The damage sin does to your spiritual life and where this leads?
4) The vital need for repentance?
5) Our duty to spread the Word?
6) God's Justice being as important as His Mercy?
Incidentally, does your church regularly make an appeal at the end of services? After all, how many people will, unprompted, proclaim that they have accepted Jesus into their lives?
Admittedly, there may be some but what about the majority?
Are you sure that where you attend is actually a Christian body? It's not just a cleverly disguised cult - is it?
Maybe time to challenge your minister over these matters?