1 Corinthians 6:17

Why do we want the things that we want? There is always a reason behind our desires. Some of them are not so good as others, but a reason none the less.

As part of our salvation our spirits were washed and regenerated, that is, we were born again in our spirit which means we are now connected to God in spirit.

not out from works, the ones in righteousness which we have done, but according to His mercy He saved us through washing of regeneration and renewing of the Holy Spirit, Titus 3:5

But the one knit together with the Lord is one spirit, 1 Corinthians 6:17

Our spirit is our rational part

For what human intuitively knows the things of a human except the spirit of the human, the one in Him? 1 Corinthians 2:11

Because we are now connected to God in our rational, intellectual part and the Holy Spirit indwells us, He impacts our desires. So the next time you have a desire to do what is right, that desire is not coming from you; rather, it is a direct result of the Holy Spirit expressing to you His desire for you in that situation. Don’t take these desires lightly, they are not natural to our human nature and are contrary to it.

But I say, walk by the Spirit and you will never bring to completion the desires of the flesh. For the desires of the flesh are against the desires of the Spirit, and the Spirit against the flesh. For these are against one another in order that you do not do the things you desire – Galatians 5:17

Now we do not want our sin nature taking advantage […]