Paul has told us that the Christian has two contrary natures within him both striving to express themselves, but he does not mean to give the impression that both natures are equally balanced in the regenerate heart, or that we can be indifferent to the outcome of this battle. No Christian can say, ‘I have two natures within me, I can do little to influence the outcome of this battle one way or the other; both are equally likely to express themselves so I will stand back and let the battle play itself out.
Is the flesh now dead or alive? To us it seems that it is very much alive and well, and able to exercise a strong influence over our lives. Paul does not mean that the flesh is no longer able to give believers any trouble, for he has just said that it is in them still, and is trying to express itself. He means that the believer’s death to sin has made an enormous difference to how the flesh expresses itself. The flesh - that is the old nature with which we are born - along with all that comes from it, the affections and lusts, has been crucified with Christ. He is well aware of the seeming contradiction in what he is saying and that on the one hand the flesh is still actively producing fruit in us, and yet on the other hand it has been crucified with Christ, but the contradiction is deliberate. There is no doubt about the position of the flesh here: it is not waiting to die but has been crucified with Christ already in a past completed act. However what is true in principle must become true in practice and this is the tension in the passage. Our victory comes by reaffirming daily what we once affirmed at the very first moment of spiritual life – that the flesh should die – ‘If any man will come after me, let him deny himself, and take up his cross daily, and follow me’ (Luke 9:23).