That’s what you need to know. Perhaps you believe God doesn’t exist, or heaven isn’t real. But regardless, in this world, real or imaginary, there is no sin.
There is also no desire to sin. If people desired sin, there would be want in heaven. But we know that there is no want in heaven. Because it is a perfect place.
Let’s just say that there is no pizza in heaven. But it’s not a problem because no one in heaven wants pizza. So there is no shortage of pizza there either.
Those that prefer sin go somewhere else. Let’s just say that heaven is preferable to this other place.
God’s will be done. God’s will is the opposite of sin. Thus in heaven, there is only God’s will. If you prefer your own will over God’s, heaven would be hell, anyways. And we can’t have people in heaven that think it’s hell.
So the question becomes, if there is no sin in heaven, and we are born sinners, how do we get into heaven?
Jesus is the only way. Remember, we cannot be good without God. So if we cannot be good without God, we need God to be good. And Jesus is the method that God comes to us. And if this goodness is the opposite of sin and comes from God, Jesus is not only the way to God, but also the only way to heaven.
I am the way and the truth and the life. No one comes to the father except by me. John 14:6