love this analogy;

"Our life is like a house; for Christians, Satan never owns the house, Jesus does, but Satan can influence and oppress. We must recognize the ways in which we could leave doors and windows to our house open (such as through unrepentant, habitual sin). Through repentance and faith in Jesus because of his death, burial, and resurrection, our allegiance to Satan is canceled, and our freedom in Christ is granted. God’s enemy becomes our enemy and Jesus’ authority becomes our authority."

- mark driscoll

listen to full message here.

. . . . . . . . .

Finally, be strong in the Lord and in the strength of his might.

Put on the whole armor of God, that you may be able to stand against the schemes of the devil.

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.

Therefore take up the whole armor of God, that you may be able to withstand in the evil day, and having done all, to stand firm.

EPH. 6:10-13