Lets put it this way....
God created everything 6,000 or so years ago but it looks older and gave us a book (bible) that directly contradicts the evidence, in one place he tells us that the universe is young but the evidence he provides shows that the universe is old.....
Or the universe really is old and, assuming for a second that God actually exsists he lies to us when his book claims otherwise....
Either way God lied to us, either the universe is young but was created to decieve us by appearing old, or the universe is actually old and God lies when he claims otherwise in his book......
Either way God is a liar and hence not omnibenevolent, hence not the christian God.....
Hence as mentioned earlier piss poor theology....