The Good Law (1 Timothy 1:8-11)

So often we can think that the law of God is something that is old or not that helpful.  Sometimes we can be tempted to look at the regulations that the Lord lays out and think that as we follow them we will climb our way into heaven.  We are not going to get into heaven apart from Christ.  So, if our redemption is based on Christ and His merits then why do we care about the law of the Lord?