Jesus said that the hairs of our head are all numbered, or listen to another way that David showed how well God knows us, 

“You number my wanderings; put my tears into Your bottle; are they not in Your book?” (Psa 56:8).

 
 
God numbers our wanderings. 
God puts our tears into His bottle. 
God records the events of our lives in His book. 
 
Does God know us or what?