# if I do this willingly

"if I preach willingly" or "if I preach because I want to"

# But if not willingly

"But if I do this unwillingly" or "But if I do this even though I do not want to".

# I still have a stewardship that was entrusted to me

"I still must complete this work that God entrusted to me" or "I still must do this work that God gave me to complete"