Is the flesh still the lifestyle of unbelievers?
Yes, the flesh remains the mundane living style of unbelievers. The wicked ramifications of the old Adam, the flesh, which were part and parcel of the past, continue as the unbeliever's lifestyle. This is contrasted with a total flip side in verse 22.
Les explains that the wicked ramifications of the old Adam, the flesh, were part and parcel of our past, but they are still the mundane living style of the unbeliever. He then introduces verse 22 as the total flip side, a stark contrast to that old lifestyle.