All in Good

When God says something is good it is good, and when He says it is perfect that is true too. So it is that we strive to do good things because we seek to imitate the goodness of God, and we are confidant we can be good, but why is it that when we are told to be perfect we quake with fear, feeling that perfection is beyond our ability? We fear perfection even though scripture tells us there are others who have been perfect. So, if only God is good, but others have been perfect, then why do we feel that we can actually be called good, but never perfect?

How do we recognize things we have never known? We know love when we see it, because we have felt it, and have watched it in action. We know good things when we see them too because we taste them, feel them, and witness the mercy and grace that they exude, but how is it that we have come to recognize evil? Where did our understanding of evil come from? I would like to think we know it because we have seen it in the world, being perpetuated by the unrighteous, but scripture tells us it comes from our heart... it wells up from within us.