Romans 8:2:

For the law of the Spirit of life in Christ Jesus hath made me free from the law of sin and death.

Notes on Romans 8:2:

The law of sin and death amounts to you getting what you deserve for your sins.  Sin leads to death.  However, a new law, the law of the Spirit of life in Christ Jesus, has set you free from the law under which you get what you deserve.  Now you can AVOID getting what you deserve, including hell, because you are in Christ.  There is no condemnation for you (Romans 8:1).

Being set free from the law of sin and death does NOT mean that you have the right to immortality in this life in your current body, as is erroneously taught by some.  Even in the New Covenant, it is appointed for a man once to die and after that the judgment (Hebrews 9:27).

See also:

Who You Are and What You Have
Objection: If We Are Subject to Death, We Are Subject to Sickness