Every living being living on planet earth today, whether you like it or not have their unique identity or name with God, Man and even the Devil. Know that the way God sees, knows and call us is never the same way with how men or the devil does.
You see, God sees us as His reflection, image and offsprings.
Men sees us as there competitors and rivals
The Devil sees us as the luckiest beneficiaries of God's love and glory and so his (the devil's) enemies.
So even when He sees and knows our sins He calls us by our name instead. but, both man and the devil we often address us by our wrongs or sins, the very situation we are in to or passing through.
"The Devil knows our names but he calls us by our sins; god knows our sins but calls us by our name."