To be right with God we must get right with Him on earth,while in the flesh,for on earth is where God prepares a people that made the choice to love God,for then it is true love.
It is on earth that we have to have faith to believe in a kingdom we cannot see,and hope for it,and learn to love to be in that kingdom.
All sin resides in the flesh,and we can be saved because we can put off the flesh.
If a person dies in their sins,there is no flesh that they can put off to be saved,but will be tainted in their being like a devil is tainted in their being.The devils cannot be saved,because there is nothing to put off,and a person that dies in their sins,there is nothing to put off to be saved.
God is love but some would disagree.
My brother used to go to Church and like it,and liked to serve the Lord,but went astray,and thought why he has has through the trials,for he thought it was not fair.
Some might say why did create mankind if some would be lost,for they feel it would have been better for God to never create anything,for to create mankind and some be lost,but like Paul said God can do what He wants,and can the clay say to the potter what do you make.