Matthew 6:23

23Ifἐὰνhoweverδὲtheὁeyeὀφθαλμόςof youσουevilπονηρὸςisᾖ,allὅλονtheτὸbodyσῶμάof youσουfull of darknessσκοτεινὸνwill beἔσται.Ifεἰthenοὖνtheτὸlightφῶςthat [is]τὸwithinἐνyouσοὶdarknessσκότοςisἐστίν,thatτὸdarknessσκότοςhow greatπόσον.

But if your eye is evil, your whole body will be full of darkness. If then the light that [is] in you is darkness, how great [is] the darkness!