Seem to me you not agree with Jesus
John 15:6
King James Version
6 If a man abide not in me, he is cast forth as a branch, and is withered; and men gather them, and cast them into the fire, and they are burned.
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Grace because you never able to bear fruit of yourselves, but if you abide in Him He grace you salvation
We not deserve salvation but Jesus offer salvation by faith, that is grace.
Grace doesn't mean you can do what ever you want and still go to heaven.
Adam wasn't make the garden, God did, by grace Adam live in the garden for free, that is grace, but it doesn't mean he can do what ever he want, he have to obey to maintain god grace.
So do us, save by grace but need to obey Him, not deny Him, carry the cross, love Him. If you hate Him, the grace no longer valid.