Neither by the blood of goats and calves, but by his own blood he entered in once into the holy place, having obtained eternal redemption for us. Hebrews 9:12
Who do we think we are?
Are we simply forgiven sinners?
Not just "declared" righteous but actually made righteous!
This is the great, glad news! This is who we really are. It's not complete to believe you are just declared righteous but still a sinner by nature. No, you are actually declared right and then made righteous in Him. You see the full message of grace is not just that you have been set free from the weight of the Old Covenant Law and totally forgiven all your sins. It must also include the reality of our being made a completely brand new creation. We are completely new in Him.
What about the flesh?
Some teach that the reason we still mess up as believers is because we still have a sin nature. That God's new life within is fighting this daily uphill struggle with an opposing nature we still possess. Is this truth? Of course not. For more info I highly recommend reading after Ryan Rufus on this subject here.
Why do we miss it so often then? Its because we have the flesh to contend with on an ongoing basis. The flesh though isn't you or your body. Your body is the temple of God. It is good because God made it. The flesh is simply a mind set. It is a thinking process that is contrary to the Word of God. I am not suggesting we can't live victorious over the flesh. We can through Him and His grace. We don't have to miss it at all, ever.
Andrew Farley says it so well. The flesh is simply the policies of the former administration. We used to think and feel and believe a certain way before Christ. Now that we are completely new and that is our true DNA, conflict may arise when those former policies wish to dominate our thinking and urge us to act on them. Knowing though what the flesh is and how it operates brings us into a place of victory.
We have the victory through our new creation.