And what can David say more unto thee? for thou, Lord GOD, knowest thy servant.
—2 Samuel 7:20
It is a great consolation to me that God knows instantly, effortlessly and perfectly all matter and all matters… all causes and all relations, all effects and all desires, all mysteries and all enigmas, all things unknown and hidden. There are no mysteries to God….
I’m not worried about these satellites they’re shooting around the earth. I’m not worried about Kruschev [former leader of the Soviet Union] or any of the rest of those fellows over there with names you can’t pronounce. Because God’s running His world and He knows all about it. He knows where these men will die, He knows where they will be buried and He knows when they’ll be buried. God knows all hidden things, “dwelling in the light which no man can approach unto” ([1 Timothy] 6:16).
And He also knows His people. You who have fled for refuge to Him, Jesus Christ the Lord, He knows you, and you’re never an orphan. A Christian is never lost, though he may think he is…. The Lord knows where he is. The Lord knows all about him. He knows about his health and knows about his business. Isn’t it a consolation to you that our Father knows it all? AOGII116-117
Yes, Father, it is a huge consolation to me that You know all there is to know. I rest in that comfort today. Amen. 
 Tozer, A. W., & Eggert, R. (2015). Tozer on the almighty god: a 365-day devotional. Chicago, IL: Moody Publishers.