Genesis 3 tells us where we get this from. After Adam and Eve disobeyed God and realized that they had done wrong, Genesis 3:8-9 says, Then the man ad his wife heard the sound of the Lord God as he was walking in the garden in the cool of the day, and they hid from the Lord God among the trees of the garden. But the Lord God called to the man, "Where are you?"
So how about you? Are you hiding under the bed because you're afraid to face the mess that you've made of your life? The great news is that God is even better at cleaning up messes than we are at making them.