The Impregnable Fortress Of The Human Heart


One who heard us was a woman named Lydia, from the city of Thyatira, a seller of purple goods, who was a worshiper of God. The Lord opened her heart to pay attention to what was said by Paul (AC 16.14).

What a miracle is conversion!

Before God opened our hearts we were spiritually dead – darkened, blind, deaf, ignorant and unable to understand the things of God.  Hardened, deceived and enslaved by Satan. We hated God and loved wallowing in the mudpits of our rebellion, flinging God’s word behind us (PS 50.17).

The unregenerate heart is an impregnable fortress.

No amount of human reasoning can crack this stronghold’s walls.  Pleading, begging, or dangling someone over the very pit of hell won’t.  Jonathan Edwards tag teaming with George Whitefield wouldn’t.  Jesus said that even if someone came back from afterlife it wouldn’t convince the wicked heart (LK 16.31).

Unregenerate hearts are invincible – except to Christ.  To break through the bunkers of our blindness and ignorance requires the divine lightning bolt power of the Lord of Hosts.  Charles Spurgeon said that in order to save us, Jesus stormed our hearts like a mighty warrior and demolished every wall opposing him.  But he didn’t stop there.  He gave us new hearts, infused with life and the Spirit of God, new hearts that long for his word, like newborns for milk.

Enlightening the human heart is a miracle of greater magnitude than creation, when God said “Let there be light” (2 CO 4.6).  A miracle even more amazing than when Jesus spoke to Lazarus, who’d been dead and in the tomb for 4 days and raised him to life.

Do you see Jesus as your beautiful God and Savior?  Then praise your Heavenly Father today for his awesome, miraculous power that opened your heart.  And keep praying that Christ will open the hearts of your unsaved friends and family members.  He has the power to tear down the mightiest walls.

photo by Portugese_eyes

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  • Ron Reffett says:

    Hey Mark,
    Wow! I just read that verse from Acts this morning in my devotion time! I am so very thankful that salvation does not depend on me, if it did..I really hate to think what that would even look like!
    It is so funny that I read this this morning, I was praying that God would illuminate His word to me this morning and lo and behold! It is such a great thing to know that even though before conversion, our hearts are so hard and stony yet God in His sovereign grace gives us brand spankin’ new hearts that are soft and pliable and able to take in the nourishment of His Word! He truly is worthy of our praise, Hallelujah! what a Savior!
    Ron Reffett

  • Hey Ron,

    Yes, what a Savior we have. It’s really cool that you just read this verse this morning. Yeah, if salvation depended on us, we’d never be saved. We’d never even desire to be saved had not Jesus opened our hearts. Thanks for your regular encouraging comments.

  • Katherine says:

    Hi mark!! :)

    I just wanted to say yes, i have heard Albertine – Brooke Fraser came from Auckland in New Zealand where I’m from. And the second thing is, would it be possible to have an email function on your site so I can circulate these devotionals around more easily? :) On the other hand, it’s alright if there isn’t such a function (copy and pasting the url is just as good). And facebook already lets you post in articles, etc, so that’s all good too :).

    I really enjoyed this post. I am so glad that Jesus saved me! And how he picked me when I’m just as bad as the next is his mercy to me… even the life experiences which humbled me are blessings from him. :)

    Thanks and may you ‘love the Lord with all your heart, all your soul, all your strength’ and have a heart to fear the Lord always.

    In Christ

  • Hi Katherine,

    Thanks for your kind comments. Wow – New Zealand. The Lord of the Rings had some great NZ scenery. I don’t know much technical stuff like an email function on the site – I can ask Stephen about that – he’s more techno savvy than I am.
    Thanks for the suggestion!

  • Katherine,

    Stephen took care of it – there is now an email function on the site. Thanks again!

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