'Have No Knowledge' in the Bible

Jesus therefore, while teaching in the Temple, cried aloud, and said, "Yes, you know me, and you know where I am from. And yet I have not come of my own accord; but there is One who has sent me, an Authority indeed, of whom you have no knowledge.

Wake from this drunken fit; live righteous lives, and cease to sin; for some have no knowledge of God: I speak thus in order to move you to shame.

that you be not overmastered by lustful cravings, like the Gentiles who have no knowledge of God;

He will come in flames of fire to take vengeance on those who have no knowledge of God, and do not obey the Good News as to Jesus, our Lord.