Bible Verses About Spiritual Blindness: Leads to all evil

So I tell you this, and insist on it in the Lord, that you must no longer walk as the Gentiles do, in the futility of their thinking.

They are darkened in their understanding and alienated from the life of God because of the ignorance that is in them due to the hardness of their hearts.

Having lost all sense of shame, they have given themselves over to sensuality for the practice of every kind of impurity, with a craving for more.