'Know' in the Bible

If thou know not, O thou fairest among women, go thy way forth by the footsteps of the flock, and feed thy kids beside the shepherds' tents.

(The Bridegroom)“I have come into my garden, my sister, my [promised] bride;I have gathered my myrrh along with my balsam and spice [from your sweet words].I have eaten my honeycomb with my honey;I have drunk my wine with my milk.Eat, friends;Drink and drink deeply, O lovers.”

(The Chorus)“Where has your beloved gone,O most beautiful among women?Where is your beloved hiding himself,That we may seek him with you?”

I did not know my {heart} set me [in] a chariot of my princely people.