True freedom is not in the knowledge of man or in human doctrine but in the knowledge of Jesus Christ. Christ is the reality and only the revelation of Jesus sets free, for in Him dwells all the fullness of the Godhead bodily. 

Christ became for us wisdom from God and righteousness and sanctification and redemption. We stand fast therefore in the liberty by which Christ has made us free. 

The liberty we have in Christ gives us the freedom to do what is right without the constraints of the law. However, liberty is not a license to sin or do whatever we want.