'Knows' in the Bible

He answered, “While the baby was alive, I fasted and wept because I thought, ‘Who knows? The Lord may be gracious to me and let him live.’

Your servant Joab did this so as to change this situation. But my lord has wisdom like that of the angel of God, and knows everything that is happening in the land."

Joab fell with his face to the ground in homage and praised the king. “Today,” Joab said, “your servant knows I have found favor with you, my lord the king, because the king has granted the request of your servant.”

Then, even a brave man with the heart of a lion will melt because all Israel knows that your father and the valiant men with him are warriors.

For your servant knows that I have sinned. But look! Today I am the first one of the entire house of Joseph to come down to meet my lord the king.”