I John 4:4
You, dear children, are from God and have overcome the world because the one who is in you is greater than the one who is in the world.
The Spirit of truth. The world cannot accept Him, because it neither see/perceives Him nor knows/understands Him. But you know Him, for He lives/remains with you and will be in/within you.
For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms.
"I have told you these things, so that in me you may have peace. In this world you will have trouble. But take heart! I have overcome the world."