The gift of life is a grace right? Grace is a sharing in God’s life, right? So our lives are a grace to us because we are created in the image of God. God blew into humans their souls, so He has given us this life.
So, God gave life to all those who He knew would mistreat the gift of life. Yet, He still created them. How would you feel if God didn’t give you the chance to live to the fullest, to His glory? How would you feel if God deemed you unworthy, in advance, of His mercy, unworthy of His grace? (Granted we are all unworthy, but meaning unworthy to the point of non-action on us, non-creation of us by God.) How would you feel even if God did this in one instance? If God decided not to give you the grace you needed, because you weren’t going to use it? I don’t know about you, but I would feel pretty unloved.
The fact of the matter is that the God we believe in- a Merciful and Loving God who is Good Himself- would never deprieve us of His grace for the simple reason of us not using it. A gift is still beautiful even if it is disregarded. Just like one user above said, a parent still gives their child gifts knowing that sometimes the child will misuse the gift. We know that God knows whether or not we will accept grace because he is all-knowing. But don’t we still ask Him in prayer for grace? Don’t we still ask for it, knowing sometimes we won’t act on it? So, how would we act if we knew that God didn’t give us grace if we wouldn’t use it? I would feel pretty lousy about that if it were true. I don’t think God would do that.
Think about it. Think of a child. He knows he should go do a good work, but is hesitant for selfish reasons (hypothetically). So his parent gives a hardy push. Yet the child really doesn’t want to do the work, so he still doesn’t do it.
Would it be just and loving of the parent to not give the push? No. Even if the parent knows for 95% sure that the child still won’t do the good, the parent still gives the push. The push still does something. The child can still reflect on it and use it in the future (in terms of principle). The parent does it to teach the child, to show the child that he loves the child.
These could be a few reasons for God still giving grace in such a circumstance.