Romans 8:3-4

For God has done what the law, weakened by the flesh, could not do: by sending his own son in the likeness of sinful flesh, and to deal with sin, he condemned sin in the flesh, so that the just requirement of the law might be fulfilled in us, who walk not according to the flesh but according to the Spirit.

Paul is convinced the meaning of God sending Jesus is the defeat of Sin and Death [we are "set free"]. The Spirit brings life ["... there is no condemnation"]. We belong to a new creation ["Christ has dealt with Sin"], with the Spirit as the presence of God in our midst, in our hearts.

It isn't that the Law is bad; indeed, as Jesus himself said, the goal is to fulfill the law, in us. The problem is, as Sin has power over us, we can't fulfill it without the power of the Spirit.

In the Spirit, we have righteousness, and we're to live according to that Spirit and implement, "on earth as it is in heaven," this righteousness we have been so freely given.