What did the motions of sins which were by the Law produce in us when we were in the flesh?

Les explains that being 'in the flesh' means being in the old Adam and spiritually dead. In that condition, the motions of sins which were by the Law worked in our members to bring forth fruit, not unto God, but unto death. He notes that every time the Jew turned around, the Law condemned him; it is human nature to be a law breaker, so the Law constantly put him down as guilty. Yet people still want to resurrect that system and bring it back into their lifestyle. By contrast, verse 6 says that as a result of the Gospel, believers are delivered from the Law, that being dead wherein we were held, so that we should serve in newness of spirit and not in the oldness of the letter. Les adds that the Law is now crucified, dead, and gone as far as God is concerned, though Israel's veil was never taken away, so they could not understand that the Law was finished and done, and they are still trying to keep it today.