Adonijah

1 Kings 1:5, 24
At that time Adonijah, David's son by Haggith, began to exalt himself, saying, "I will be king!" And he acquired chariots and horsemen and fifty men to run ahead of him. . . .

2 Samuel 15:10
Then Absalom sent spies throughout the tribes of Israel with this message: "When you hear the sound of the trumpet, you are to say, 'Absalom reigns in Hebron!'"

thou knowest

1 Kings 1:11, 24, 27
Then Nathan said to Bathsheba the mother of Solomon, "Have you not heard that Adonijah son of Haggith has become king, and our lord David does not know it? . . .

Acts 3:17
And now, brothers, I know that you acted in ignorance, as did your leaders.