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. -Ephesians 6:12 ESV
Ephesians 6:11 ESV
Put on the whole armor of God, that you may be able to stand against the schemes of the devil.
James 4:7 ESV
Submit yourselves therefore to God. Resist the devil, and he will flee from you.
2 Corinthians 11:12-15
12 And what I am doing I will continue to do, in order to undermine the claim of those who would like to claim that in their boasted mission they work on the same terms as we do. 13 For such men are false apostles, deceitful workmen, disguising themselves as apostles of Christ. 14 And no wonder, for even Satan disguises himself as an angel of light. 15 So it is no surprise if his servants, also, disguise themselves as servants of righteousness. Their end will correspond to their deeds.