In Luke 21, as Jesus is foretelling Jerusalem’s destruction and his return, he suddenly warns against these symptoms of lifestyle and what to do about them – Be careful of what weighs down your heart. (Luke 21:34)
At some point, our time will run out and all we will have is the stuff we are made of to offer up in the judgment. That offering will be the direct result of what we put in our heart.
God made our heart (or mind, or soul) in such a way that it returns exactly what we put in it. Fed one way, it returns the things Jesus warns about in Luke 21:34. Fed another way, we would be godly people able to avoid the “trap” of death.
In summary, we actually become what we think about.
Look at what the Proverb writer says:
Be careful what you think,
because your thoughts run your life.
Don’t use your mouth to tell lies;
don’t ever say things that are not true.
Keep your eyes focused on what is right,
and look straight ahead to what is good.
Be careful what you do,
and always do what is right.
Don’t turn off the road of goodness;
keep away from evil paths. – Proverbs 4:23-27 NCV
He is showing us that we have control over what we think about. Some may be out of practice, but we have the ability to feed our minds with good. When we do that, our decisions and conversations and attitude will begin to reflect godly things. The kind of things we want to present to Christ when he returns. (Luke 21:36)
Paul gave us a number of lifestyle directions in just about every letter he wrote. One of my favorite being Philippians 4:8:
Finally, brethren, whatsoever things are true, whatsoever things are honest, whatsoever things are just, whatsoever things are pure, whatsoever things are lovely, whatsoever things are of good report; if there be any virtue, and if there be any praise, think on these things. – Philippians 4:8 KJV
If Jesus comes right now, will your heart be full of what is in the Luke 21:34 warning or the Philippians 4:8 exhortation?