“Did Paul teach everyone the Law first?”

Did Paul take the Law with him to explain it to Gentiles? Being nice to your enemy to “heap coals on them” seems underhanded. Why would Proverbs suggest this? What “works” is Paul talking about in Romans 4? What “commands” is John referring to in his letter? What does it mean to keep His commands?

Flirting with Moses is cheating on Jesus!

Is the millennial reign a literal thousand years or does it symbolize a lengthy period of time? Why are humans uniquely endowed with the ability to choose relationship with God? What does Romans 4 mean concerning those who are “of the Law” and nullifying the promise?