'Do You Not Know' in the Bible

Or do you not know that all we who were baptized into Christ Jesus were baptized into his death?

Do you not know that to whom you present yourselves as servants to obedience, his servants you are whom you obey; whether of sin to death, or of obedience to righteousness?

Or do you not know, brothers (for I speak to men who know the law), that the law has dominion over a man for as long as he lives?

God did not reject his people, which he foreknew. Or do you not know what the Scripture says about Elijah? How he pleads with God against Israel: