First of all, we are talking here about Spiritual life and spiritual death, not physical life or physical death! The law of sin and spiritual death is applied to all that is of the old nature, therefore it is a law principle for the old creation. Whenever we walk after the old nature then sin and Spiritual death will surely follow. Whenever we walk after the old nature we put ourselves under the principle of Law. But that which sets us free from this law is yet another law which is the law of the Spirit of life in Christ Jesus. God's new covenant of 'Grace' has provided us with this new law of the Spirit. The law of the Spirit is Christ! It is Christ in our place! It is Christ in place of self! This law is greater and stronger than the former law and transcends it completely! This new law principle is available to all who abide in Jesus by simple faith, yet we have to choose to learn to live by it. Don't worry, God is at work in your life to bring all this about anyway!
What is it to walk after this law of the Spirit of life that transcends the law of sin and death? Consider the birds. If you could ask them whether or not they were afraid of the law of gravity, how would they reply? They would say, "We've never heard of Newton; we know nothing about this law of gravity. We fly because it is our natural law of life to fly." Not only is there in them a life with the power of flight, but that life has a law which enables these living creatures to quite spontaneously overcome the law of gravity. Yet the law of gravity remains. If you get up early one morning when the cold is intense and there is a dead sparrow on the ground, you are reminded at once of the persistence of that law. But while the birds live they overcome it and the life that is within them is what spontaneously dominates their consciousness.
Today in the Church as Christ's body, we need to acknowledge the life of Christ in us as the law of the spirit of life! By now it should be so very real to us that we allow His life to dominate our consciousness! Do that and you will find that you too will spontaneously start to overcome the old by living in the new. Yes, the law of the spirit of life that is Christ Jesus has freed us from the law of sin, self and spiritual death!