When anyone takes to the sky, there is a raft of papers and a plethora of documents that determine the fitness (in all senses) of the pilot in question to be more than a few feet off the ground. The simple fact is that every human being in the air, and in control of an aircraft (powered or otherwise) is fairly comprehensively known to the regulatory authorities. There is no real way of avoiding that, and for good reason.
We find ourselves, at the moment, in the wonderful and hopeful season of Epiphany. The season of 'revealing' gives us a chance to unwrap afresh the perfect gift of Jesus in our midst. It also grants us another chance to unwrap ourselves and discover the 'us' that God knew before we were born (cf. Ps 139). I believe that the person that God knows, as distinct from one we think we know, ourselves, takes a lifetime to get to know.
I am blessed with twin daughters who, perhaps unsurprisingly, look very much alike - except to their mother and I. To us, they couldn't be more dissimilar - not because we have especially good attentions to detail - but because we 'know them' so much better than anyone else. Few people can tell them apart, as you would expect. Those people are good, kind, and caring people - it is just that they are not blessed to know as we know. If that difference can be so marked in humans, imagine what we must really look like to God who knew us even before our mothers?