And I will give them an heart to know me, that I am the Lord: and they shall be my people, and I will be their God: for they shall return unto me with their whole heart.
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And I will give them one heart, and I will put a new spirit within you; and I will take the stony heart out of their flesh, and will give them an heart of flesh:
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Create in me a clean heart, O God; and renew a right spirit within me.

COMMENTARY

Thus far we’ve studied examples that illustrate how God wants us to become a good person, more than He wants us to merely know or do good things. As we recognize and accept that divine identity within us, goodness naturally flows from us without coercion.
But the idea that God wants us to become something presents a difficult quandary and it invites all manner of anxious questions. How exactly do I change myself into something new? What if I can’t make myself better? What if I haven’t figured out how to change my heart with the flip of a switch?
Well, I won’t leave you in suspense, you can’t and you won’t. You need to be changed at your core, and that frankly is not within your power.

And I will give them one heart, and I will put a new spirit within you
It is God who changes the heart and God alone. If ever we are to experience a real transformation it is purely by an act of grace from Him.
Certainly it is within our power to do good works which invite God to change us, but make no mistake that it is still God who does the actual changing. We get ourselves to the right place, then He does the miracle.

But that might bring up other anxious questions. What if God just doesn’t show up for me? What if I do my part and then He never makes that change in my heart?
It really goes against our grain to depend on someone else like that. Our human natures balk at the idea of giving up direct control to trust in someone else. We would much rather that God just give us a to-do list and send us on our way.
If I knew that I needed to utter so many hours of prayer, attend church for so many weeks, and read so many verse of scripture, then that would mean it was entirely up to me whether I made it into heaven or not. That is how I would prefer it.
But that is not how it works, is it? You simply cannot earn your way into heaven. God knows that this is uncomfortable for us, and frankly He designed it to be so. God requires us to be humble, to rely on faith, and to depend on Him. You’re right that if He didn’t show up for you it would be very bad, but He promises that He will.
As you submit to that you’ll probably feel something hard and heavy breaking and falling away from you in the process. That would be your pride.