1/ "Are you so foolish? Having begun in the Spirit, are you now being made perfect by the flesh?" Paul is not talking about justification but what is subsequent to it. The "flesh" here is to put oneself under the law. "But after faith has come, we are no longer under

2/ a tutor" 3:24. After salvation to we continue by the Law or by the Spirit? That is the question. The legalists will call this a dangerous antinominiaism, I will call them modern day Galatians. And yes, "I love Thy law" - it pointed me to Christ and it still is a shadow of Him

3/ but He is the "body" - the substance. It imparts not a pinch of power, if I take it up as my sanctifer, it can only condemn me. Thus by maintaining its condemning power (and not teaching that grace has made it powerless to curse) "we establish the law" and maintain its purpose