Guard Your Heart (Proverbs 4:23)
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Proverbs 4:23
Keep your heart with all vigilance,
for from it flow the springs of life.
As we’ve looked at the past few days, Proverbs (and all of Scripture) makes it clear that in the outer man the tongue is the main thing to be kept and guarded, and today this famous verse from Proverbs (Proverbs 4:23) shows us that in the inner man, the heart is the main thing to be kept.
‘Out of the abundance of the heart, the mouth speaks’ (Luke 6:45).
What we say, what we do, who we are, it all flows from the posture and condition of our heart.
One commentary I read on this verse compared the culture of Christianity’s view of God similar to the world’s view of Santa Claus - He judges you if you’re nice and rewards you if you’re good. This view often leads to behavior-focused Christianity, where people try to fix themselves outwardly without addressing the true source of their actions—the heart. And because of that, what we find is a bunch of behavior modification seeking Christians in our churches and communities, but that’s not the gospel, which is evident here.
Proverbs 4:23 says all that we do flows from our heart, and Scripture makes it clear our heart is ‘deceitful above all things’ and ‘desperately sick’ – our hearts are tainted with and by sin. So we don’t need behavior modification, because that at best gets us genuinely nowhere. It’s like slapping a bandaid on internal bleeding—on the outside, it might look fine, but underneath, the real problem is still there, completely unaddressed.
And that’s where Christ comes in. Why? Because He lived a perfect life – void of any behavior modification because frankly he didn’t need it – dying the death you and I deserved and resurrecting again on the third day defeating sin and death forever, so that in Him we may have new life. A new life that consists of a new heart, no longer one of stone but one of flesh, indwelled with the Holy Spirit, who ultimately changes our behavior.
Whatever struggles you may have, trials you may face, whatever ‘thing’ in your life that you’d like to modify, maybe you can change it. But your problem with sin in your heart – that only Jesus Christ can change. And those other things realistically only He can change too, because everything we do flows from the what? The heart.
A new heart is what begets new lasting behavior and only Jesus can give you that new heart.
So when this verse says ‘keep the heart with all vigilance’, really it's a call to look to our ‘keeper’, our ‘shade on our right hand’, the one who (in Christ) sits on the throne of our hearts, as Psalm 121 reminds us.
So that leads me to ask you: if Jesus is the one who keeps and transforms our hearts, how do we live in light of that truth? How do we participate in guarding the hearts He has redeemed?
And what does that look like? That is the question I leave you with today.
What does it look like for you to keep your heart with all vigilance?
I think one practical aspect of what this protecting of the heart looks like is doing exactly what we’re doing now. Reading the Word, and praying through it.
Psalm 119:9 says ‘How can a young man keep his way pure? By guarding it according to your word.’
We guard our hearts by reading and remembering the Scriptures. And when we fill our hearts with God’s Word, it shapes our thoughts, actions, and desires. So this week I challenge you to soak in Scripture and let it renew you from the inside out. Start with this verse, Proverbs 4:23—write it down, carry it with you, and pray it over and over and over again.
Let’s pray it today.
