There are two ways to live: in the flesh or in the Spirit.
The flesh is our natural, human, animalistic desires.
The Spirit is the breath of God, God Himself.
Only when someone is born again can they live in the Spirit, for only then can the Spirit take residence in them.
But everyone has the capability to live in the flesh; it is, after all, how we were born.
Some people think that sin is enjoyable and pleasurable; they think that is a fact for everyone.
But that's not true.
Sin is only enjoyable to the flesh, and your flesh loves it, can't get enough of it, even believes that sin fulfills its very purpose in life.
"I was born this way."
Yes, your flesh was born to enjoy and take pleasure in sin.
But the Spirit of God hates sin, despises sin, and finds it absolutely despicable in every way.
If anyone lives in the flesh, he or she will enjoy sin, but if anyone lives in the Spirit, he or she will find sin repulsive.
The same is true if you try to listen to a teaching from the Word of God in the flesh.
You will not understand it, you will find it useless and boring, and even try to block your ears from hearing it.
But if you listen in the Spirit, you will find the living waters of eternal life, the essence of God Himself.
That's why Jesus said, he who has ears to hear, let him hear.
If you listen with ears of flesh, you will never receive anything beneficial or life-giving from the words of Christ.
But if you listen with spiritual ears, in the Spirit, the words of Christ will become in you a spring of living water welling up to eternal life.
What you receive depends on where you live.
And there's only one way to change residency:
You must be born again.
He who has ears to hear, let him hear.