Translation:

70. "Only this has been revealed to me: that I am to give warning plainly and publicly."

Notes (Tafseer)

4224. Two things are implied in Mubin: (1) that the warning should be clear and perspicuous; there should be no mincing of matters, no ambiguity, no compromise with evil, vii. 184; (2) that the warning should be delivered publicly, before all people, in spite of opposition and persecution, xxvi. 115. Both these ideas I have tried to express in this passage.