Romans 8:3-4

For what the Law could not do [that is, overcome sin and remove its penalty, its power] being weakened by the flesh [man’s nature without the Holy Spirit], God did: He sent His own Son in the likeness of sinful man as an offering for sin. And He condemned sin in the flesh [subdued it and overcame it in the person of His own Son], [Lev 7:37] so that the [righteous and just] requirement of the Law might be fulfilled in us who do not live our lives in the ways of the flesh [guided by worldliness and our sinful nature], but [live our lives] in the ways of the Spirit [guided by His power].