Our sinful nature has been crucified on the cross.

 Galatians 5:24

Those who belong to Christ Jesus have nailed the passions and desires of their sinful nature to His cross and crucified them there.

As children of God, we are new creations, this according to 1 Corinthians 5:17 that says: "Therefore, if anyone is in Christ, the new creation has come: The old has gone, the new is here!" The old ways of human nature, has gone, which includes the passions and sinful nature, which has been crucified on the cross, through what Jesus has done for us. Meaning, with the new creation, now the Holy Spirit dwells within you and you now have the power to resist what may have been a challenge previously, through the power of the Holy Spirit. Also, this is through the renewing of mind, changing the mindset. Romans 12:2 tells us that we do not conform to the standards of the world, but we have our minds transformed by the word of God. Thus, the more you read scriptures and meditate on them, your mind is refreshed with the knowledge of Christ and somehow this changes your preferences and appetite for things. Once the truth is revealed to you, as you learn from the bible, this is when you get to see right from wrong; through the Holy Spirit interpreting and making sense of what is said in the bible.

This is a game-changer, as we know that as humans, we have weaknesses. Which is why Paul writes in the book of 2 Corinthians 12:10 that where I am weak, through Christ, I am strong. This is only possible by the grace of God, where His power is made perfect in our weaknesses. This helps us get rid of our sinful nature and live the holy life God has for us. Remember, we are not righteous by our own doing, but we are righteousness of God through Christ (2 Corinthians 5:21). This is why we will always be grateful for the cross!