The conclusion of Paul's address to the Areopagus in Athens has him emphasizing objectionable and controversial content, at least to his listeners, as he explains the need for repentance and correct worship of God because of the resurrection.  Though this is the last that we hear of Athens in the Bible, Luke's account is significant as Christianity interacts with the respected intellectual schools of the day.

[Act 17:30-34 NASB] 30 "Therefore having overlooked the times of ignorance, God is now declaring to men that all [people] everywhere should repent, 31 because He has fixed a day in which He will judge the world in righteousness through a Man whom He has appointed, having furnished proof to all men by raising Him from the dead." 32 Now when they heard of the resurrection of the dead, some [began] to sneer, but others said, "We shall hear you again concerning this." 33 So Paul went out of their midst. 34 But some men joined him and believed, among whom also were Dionysius the Areopagite and a woman named Damaris and others with them.