Amen Grace. Truly, Salvation is a free gift and it is unearned favour from God. And we can never work our way to Heaven on our own howsoever hard we try.

An example can be - A good person working in a cigratte factory like Marlboro. Even if he is an accountant and he does it to feed his family, he helps poor people and is very gentle to everybody. Yet he is indirectly and unintentionally contributing to the death of millions of people (Killing people). So, there is practically no margin left for anyone to be blameless and sinless. Likewise, there are many examples which prove that Salvation is free gift and we can not work our way to heaven. It is the blood of Jesus Christ that saves us. That makes our life worthy to live.