1 Therefore I exhort you, brothers, by the mercies of God, to present your bodies as a sacrifice—living, holy, and pleasing to God, which is your spiritual service of worship. 2 And do not be conformed to this world, but be transformed by the renewing of your mind, so that you may approve what the will of God is, that which is good and pleasing and perfect. Romans 12:1-2 (LSB)
In our daily Christian walk it is a rare day in which we take every thought capture and, through our active repentance, successfully deny ourselves through every circumstance. I don’t think I could claim that I have successfully done this the majority of the time….
However, our God is wise and omniscient. It should be a matter of great rejoicing on our part that our perseverance is in His hands and is based on the work of the Holy Trinity on our behalf, not on our will power.