'Knew' in the Bible

He was also driven from mankind, and his mind was made like that of an animal, and his dwelling place was with the wild donkeys. He was given grass to eat like cattle, and his body was wet with the dew of heaven until he came to know [without any doubt] that the Most High God rules over the kingdom of mankind and He appoints it to whomever He wills.

And you, his son, O Belshazzar, have not humbled your heart (mind), even though you knew all this.

Now when Daniel knew that the document was signed, he went into his house (now in his roof chamber his windows were open toward Jerusalem); he continued to get down on his knees three times a day, praying and giving thanks before his God, as he had been doing previously.

Instead, he will honor a god of fortresses, a god whom his fathers did not know; he will honor him with gold and silver, with precious stones and with expensive things.