God’s gift of grace is only of ‘value’ to those who know what it cost and how valuable it really is..
If I gave one $100 bill to a man who lived in a system where only bartering of goods was the norm, he has no concept of the value of that paper money.
He could accept it, reject outright or take it and then give it back after wondering if he can do anything with it ..maybe use it to wipe his hands or nose, who knows...
It could seem worthless to him..
Its value doesn’t change, and his potential rejection of it in ignorance, doesn’t affect the value of the gift.
The gift is priceless to those who accept it, worthless to those who reject it , and has been devalued and deemed ‘not worth it’ by the ones who first accept it, then hand it back..
Jesus said he that is forgiven much loves much and he that is forgiven little loves little (Luke 7:47). Does that mean some have more sin that others. Not really. It means there are those that accept God's grace and righteousness entirely as a gift and there are others who don't because they're still holding on to their own "goodness."
God didn't take Israel from Egypt straight to the promised land. They had to go through the wilderness. That generation failed to reach the promised land because of their self-righteousness which is ALWAYS of the law (Philippians 3:9). Likewise, many Christians (although they are going to Heaven) fail to reach their God-given destiny here on earth because they still try to be justified by the law and, therefore, they are fallen from grace, Christ having become of no effect to them on a day-by-day basis (Gal 5:4). They therefore fail to live the promise of reigning in life, victorious and strong (Rom 5:17), because only Christ is our victory.
The way out of that mess is to start realizing God loves and accepts you unconditionally no matter what you do. Soak in his love for you long enough, and the need for self-righteousness begins to fall off like filthy rags slipping off an oily surface.