By focusing more on God's love for me, I overcome that fear that comes from the devil. Fear, the very bottom line to fear, is Satan wants you to be afraid that what God promised you in the light won't come to pass. "I'm afraid to believe what God said about my identity. I'm afraid to believe that God will preserve me, so I'm moving to self-preservation". It always goes into self when you don't believe God. And selfishness is a key characteristic of the devil. It's always, it moves away from God to self.