2 Corinthians 10:5 says, "We destroy arguments and every lofty opinion raised against the knowledge of God and take every thought captive to obey Christ." As Christians, we can't allow the culture and apostasy to seep into our hearts and minds. We must be in the scriptures so that we are  tightening the locks on our hearts and minds. Each day there is a battlefield for our mind and we must continually take every thought captive and train in God's word.