'Thoughts' in the Bible

yea and a sword shall pierce through thine own soul; that thoughts out of many hearts may be revealed.

But he knew their thoughts; and he said to the man that had his hand withered, Rise up, and stand forth in the midst. And he arose and stood forth.

But he, knowing their thoughts, said unto them, Every kingdom divided against itself is brought to desolation; and a house divided against a house falleth.