Interesting questions about Grace. Let's start this way about the meaning of Grace which is God's unmerited favor. There's no doubt that everyone enjoys God's grace especially as a way to know more about God and His works. Everyone is entitled to this grace from God who gives grace to His children but do you know this grace has limit? Especially when you have been enjoying God's grace and yet, you still do not have any connection with God or do not try knowing Him? God is not a fool, especially when you think His grace is working for you on daily basis and still you are a sinner. God's grace is over everyone but we should also learn to acknowledge God's favor in our lives. By doing this, we would be extending the limit of grace over our lives.
I have always enjoyed God's grace especially in my school where the serious students read from the start of session but fails while those who didn't read have their way of passing. Everything in life is all about Grace and I don't think our efforts paves way unless God wants it.