We overcome the Deceiver by doing good

"For the accuser of our brethren, he who keeps bringing before our God charges against them day and night, has been cast out!  And they have overcome (conquered) him by means of the blood of the Lamb and by the utterance of their testimony, for they did not love and cling to life even when faced with death [holding their lives cheap till they had to die for their witnessing]."
(Revelation 12:10-11 AMP)

"Do not let yourself be overcome by evil, but overcome (master) evil with good."   (Romans 12:21 AMP)

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