In the LORD - The Greek describes us being locked up inside Jesus Christ. 

Paul is saying we have actually been placed inside Jesus Christ; He has become our realm of existence and the place of our habitation.  Because the power of God is also located inside the LORD, and we are also located inside the LORD, it means we are constantly rubbing elbows with this divine power on a minute-to minute basis.  

Finally, my brethren, be strong in the LORD, and in the power of his might.  (Ephesians 6:10)

Rest: anesis = to let up, relax, stop being stressed, find relief   

Take Paul’s counsel to heart, and allow yourself a little relaxation and time for recreation---time away from your problems.  When it’s time to come back and face those problems again, you’ll be refreshed and recharged with renewed vision.  You’ll see that challenge with new eyes, and you’ll face it with new strength.  If you don’t take a break from that constant stress, it will keep wearing you down until you become easy prey for the devil.  So say goodbye to your problems today.  Take a break, and allow yourself a little time to rest, relax, and recuperate!

And to you who are troubled rest with us. (2Thessalonians 1:7)

Advantage: pleonekteo=a desire to have more, and more, and more; greediness 

The devil will use any method necessary to take advantage of us and get us under his control.  He will deviously and artfully endeavor to outwit us, trick us, dominate us, and ultimately take us as his hostages.  So don’t shut your eyes and ignore the fact that the devil wants to bring about your downfall.

Instead, open your eyes and allow the Holy Spirit to teach you how to recognize the devil’s operations so you won’t fall prey to him any longer.  Then you’ll be able to say, “Devil, I know this is you attacking me, so I am telling you to leave now in Jesus’ name!”  Lest satan should get an advantage of us: for we are not ignorant of his devices. (2 Corinthians 2:11)

Enriched: plousios = extreme or vast wealth  

Don’t settle for spiritual poverty. You have every right to expect an abundance of manifested promises, power, and spiritual gifts in your life,  These spiritual riches are yours by virtue of your relationship with Jesus.  The day you were placed in Him, they legally became yours!  In God’s eyes, you are a spiritual plutocrat—so loaded with spiritual assets and treasures that you’ll never be able to fully explore or exhaust all of them in your lifetime! 

In everything you are enriched, in all utterance, and in all knowledge; even as the testimony of Christ was confirmed in you. (1 Corinthians 1:5-6)  

HEY!  LET US BELIEVE THIS TO BE SO!