'Do You Not Know' in the Bible

Or do you presume upon the riches of his kindness and forbearance and patience? Do you not know that God's kindness is meant to lead you to repentance?

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

Do you not know that if you yield yourselves to any one to obey as slaves, you are slaves of the one whom you obey, whether of sin, which leads to death, or of obedience, which leads to righteousness?

Do you not know, brethrenfor I am speaking to those who know the lawthat the law has authority over a man only as long as he lives?

God has not rejected his people whom he foreknew. Do you not know what the scripture says of Elijah, how he pleads with God against Israel?