T — Because the carnal mind is enmity against God: for it is not subject to the law of God, neither indeed can be.
T — So then they that are in the flesh cannot please God.
It is amazing how we gloss over verses that don’t fit into our systems. And how common it is that these kinds of verses are ignored totally by semi-pelagian preachers and teachers. Romans 8:7 covers the idea that the unregenerate are not subject to the law of God. Calvinist and non-Calvinist can agree on this. We all have Romans 3:23 underlined in our Soul-Winner’s New Testament! “all have sinned,” after all! But what is this? It goes on to compound the issue with a clear statement regarding one’s moral inability. Not only are those who walk after the flesh, being carnally minded and therefore dead, not subject to God’s law, but that are not subject because they cannot be subject.
This speaks to the debated question of who it is who can receive Christ. If “without faith it is impossible to please God,” and if verse 8 says they that are in the flesh cannot please God, then does it not follow that they that are in the flesh cannot believe unless regenerated before he believes? Oh, but that would demonstrate the logical connection between Total Depravity and Irresistable Grace . . . 
The Misadventures of Captain Headknowledge 
Great post!
It spurred me on to write a post of my own on the topic, see here!
God bless.