The Law - 2:13-14

Romans 2:13-14 ESV 

For it is not the hearers of the law who are righteous before God, but the doers of the law who will be justified. For when Gentiles, who do not have the law, by nature do what the law requires, they are a law to themselves, even though they do not have the law.

The law has not gone away. The Gentiles are doers of the law though they do not have the law. Jews have the law but cannot do it. With man alone, righteousness is impossible, but all things are possible with God. 

The Gentiles are transformed and are renewing their minds and hearts by the grace of God. This is a gift of the Holy Spirit, of God in our midst. The law was given by the Lord and pointed to the coming of the Lord. Jesus embodied the law and He dwells in us. As the body of Christ we have the law and it becomes our nature.