There are many passages which speak about God knowing us who are his children. In one respect that means that he knows who every believer is – those who have lived and die, those who now live on the earth, and those who will live. He knows them all.
There are times, however, when the word ‘know’ is used when it means more than to “have knowledge of” something. A good example is found in the gospel of John where Jesus says, "I am the good shepherd; I know my sheep and my sheep know me—“ (John 10:14 - NIV). He is not simply saying that he knows who they are but that he has a relationship with them. You may be acquainted with the local newscaster because you see him every night on TV. Then you run into him in the checkout line at the store and you say, “I know you!” That’s quite different from saying you know your spouse, parents, children, or your best friend.
You may know it is cold outside because the weather channel says it is five degrees with a wind chill of ten below. Then you put on your robe and slippers to go get the paper from the driveway. You step outside. Now you know, know from experience, it is cold out.
When God says he knows us, it means he knows more than who we are, our name, where we live, our parents and friends. He knows our weaknesses and strengths. He knows our wants and desires. He knows when we are weak, when we are vulnerable to the temptations of the devil. He knows when we are discouraged, afraid, when we are sad, when we are afraid. He knows how we feel when we’ve lost someone we love or how we feel when faced with the prospect of death. He knows us.
Because he knows us in such an intimate way, he is able to help us, protect us, take care of our needs. He knows when we need strength and encouragement. He assures us of his presence when we feel like we are alone. When our problems seem to be more than we can bear, he carries them for us. When our sins condemn us, he assures us of his forgiveness. When death is at our door, he says ‘don’t be afraid. I have overcome death.’ When this world’s problems, pain, and trials plague us, he reminds us they are temporary and the day will come when we will be in glory where there will be no more pain, sorrow, death or anything else to take our joy away.Yes God knows us. He knows us well. What a comfort! What a blessing!