# I might be grieved by many of those who have sinned before now and who did not repent ... that they practiced

"I will grieve because many of you have sinned before now and have not repented ... that you have practiced" 

# did not repent of the uncleanness and sexual immorality and lustful indulgence

"did not stop committing the sexual sins that they practiced" 

# of the uncleanness

"of secretly thinking about and desiring things that do not please God" 

# of the ... sexual immorality

"of doing sexually immoral deeds" 

# of the ... lustful indulgence

"of ... doing things that satisfy immoral sexual desire"