What you think about hate? Do you have it in you? The Bible says all have. Human always have tried to help themselves by laws. God's Law also tells us not to hate.
We as Christians must abide by the Law of God, must respect God's Commandments. Even when we can not be saved by it, it is good to abide by it. Jesus Christ says that you will be counted the least of the least even if you break the smallest part of God's Law and this the main reason that God knows that we can be saved by it even when we try hard to keep it.
It is indeed a mirror that shows us our sinful nature. But the Law of the LORD also gives us the good news of God through Jesus Christ that by trusting Jesus as LORD and Saviour of lives, we will be justified freely because Jesus Christ has completed the Law for us and therefore we don't need to worry.