“A final word: Be strong in the Lord and in His mighty power. Put on all of God’s armor so that you will be able to stand firm against all strategies of the devil. For we are not fighting against flesh-and-blood enemies, but against evil rulers and authorities of the unseen world, against mighty powers in this dark world, and against evil spirits in the heavenly places. Therefore, put on every piece of God’s armor so you will be able to resist the enemy in the time of evil. Then after the battle you will still be standing firm.”
Ephesians 6:10-13 NLT

We are challenged every day into getting sucked in to thinking like the world thinks. We are forever bombarded with thoughts of greed, anger, fear, lust, and cynicism. These things do not generally happen all at once, but they sneak up on you. You cannot afford at any moment to let your guard down. You will need to be alert at all times and have the full armor of God protecting your mind, knowing that He who is in you is greater than he who is in this world. And if God be for you, who can be against you?

Read Colossians 3 and meditate on it.