What is your opinion of a liar?  Do you trust him?  Do you put any stock in what he says?  I can’t help but think of the elementary response to a liar: “Liar, Liar, Pants on Fire!” 
The phrase really makes sense when you think about it.  The father of lies is Satan and hell is his dwelling place, but the earth is his playground and he plays dirty [John 8:44].  He comes out to play with a single three pronged agenda, “to kill, steal and destroy” us [John 10:10].  Unfortunately, he doesn’t have to work too hard if he can spread a lie about us. The sad thing is, he doesn’t have to spread it through our workplace or community to plant his seeds of destruction.  He simply needs to plant it in our minds and wait for it to take root and flourish.
When we believe the lies of Satan, we are negating the Truth of God.  The Truth doesn’t just stop with Satan’s action plan for us. The second part of John 10:10 says, “I have come that they may have life, and have it to the full.”  The full life He is speaking of isn’t based on our measurement of full, but it is based on the fullness of God [Ephesians 3:17-19]. We can’t even begin to understand that kind of fullness.  It’s massive, beyond our ability to conceptualize.  It’s that good!
God isn’t standing by when the enemy comes at us with lies saying “Good luck with that!”  He knew the enemy would play dirty and He equipped us for the fight.  2 Corinthians 10:5 says, “We demolish arguments and every pretension that sets itself up against the knowledge of God, and we take captive every thought to make it obedient to Christ.”  Simply put, we sift the lies through the Word of God and only take hold of the things that line up with His Truth.  His Truth is our truth.
What has the enemy told you about yourself lately?  What does God’s Word have to say about it? Just as Jesus did in the wilderness, if we will use God’s Truth as our weapon when fighting the enemy, we’ll be victorious every time [Matthew 4:1-11].  The enemy will tire from the fight, because he won’t advance an inch.  He knows when he’s beaten so he goes away.  Darkness and light cannot coexist.

 It’s time to sharpen your Sword [Ephesians 6:17].  You never know when you’ll need it, so be ready.