Ephesians 4:17, 18
Ephesians 4:17 NIV
So I tell you this, and insist on it in the Lord, that you must no longer live as the Gentiles do, in the futility of their thinking.
Ephesians 4:18 NIV
They are darkened in their understanding and separated from the life of God because of the ignorance that is in them due to the hardening of their hearts.