3 Bible Verses about Light And Darkness

Be not unequally yoked together with unbelievers: for what fellowship has righteousness with lawlessness? What communion has light with darkness?

and we have the prophetic word better established. You do well to attend to this, as to a lamp that shines in a dark place, till the day dawn, and the morning star arise in your hearts;

He that says he is in the light, and hates his brother, is in darkness till now.