Christians are overcomers in Christ. In that sense satan has no power over us in the spirit. Yet our flesh will always feel the presence of satan.
We are not to let our flesh rule over us.
Galatians 5:16But I say, walk by the Spirit, and you will not carry out the desire of the flesh.
Romans 6:12 Let not sin therefore reign in your mortal body, that ye should obey it in the lusts thereof.
Romans 8:6
For to set the mind on the flesh is death, but to set the mind on the Spirit is life and peace.
Romans 8:7
For the mind that is set on the flesh is hostile to God, for it does not submit to God's law; indeed, it cannot.
Romans 8:8
Those who are in the flesh cannot please God.
Galatians 5:19-21
Now the works of the flesh are evident: sexual immorality, impurity, sensuality, idolatry, sorcery, enmity, strife, jealousy, fits of anger, rivalries, dissensions, divisions, envy, drunkenness, orgies, and things like these. I warn you, as I warned you before, that those who do such things will not inherit the kingdom of God.
Colossians 3:1-25
If then you have been raised with Christ, seek the things that are above, where Christ is, seated at the right hand of God. Set your minds on things that are above, not on things that are on earth. For you have died, and your life is hidden with Christ in God. When Christ who is your life appears, then you also will appear with him in glory. Put to death therefore what is earthly in you: sexual immorality, impurity, passion, evil desire, and covetousness, which is idolatry.
Ephesians 6:12
For we do not wrestle against flesh and blood, but against the rulers, against the authorities, against the cosmic powers over this present darkness, against the spiritual forces of evil in the heavenly places.