3 Bible Verses about Light And Darkness

Be not strangely yoked with unbelievers; for what fellowship hath righteousness with unrighteousness? Or what communion hath light with darkness?

And we have more sure the prophetic word, to which ye do well in taking heed, as to a lamp shining in a dark place, until the day dawn, and the daystar arise in your hearts;

He that saith he is in the light, and hateth his brother, is in the darkness until now.