Look at Matthew 13:44-46.
The treasure and the knowledge that he could possess brought joy to the man who purchased the field. Even though it cost him everything he had � the sacrifice of the merchant was nothing compared to possessing the treasure.
Giving up everything allows us to be dead to sin and alive to Christ. He himself is our treasure and His rule in our lives is the fulfillment for which we were created � the hope, the peace, the life, and the love. Do you see Christ as a treasure? Is He real enough to you that you have tasted of His life? Have you experienced His presence and the fulfillment that it brings?
We cannot change our nature with our own strength. All He requires of us is to give up everything to follow Him. If we do, a miracle birth follows � the birth of a new nature that is not prone to sin anymore.
1 John 3:5-6,9: �But you know that he appeared that he might take away our sins. And in him is no sin. No one who lives in him keeps on sinning.
No one who continues to sin has either seen him or known him�No one who is born of God will continue to sin, because God�s seed remains in him; he cannot go on sinning, because he has been born of God.�