Are all saved? (Rom. 9:19-25; COD Head 1 Art. 15-16)

As human beings we can potentially see ourselves as adorable, maybe a little mischievous, and maybe even a little flawed. The reality is that we are not always honest about how bad and undeserving we are to receive Christ's grace. One of our problems is that we can think that we are a little deserving of God's grace and favor, but in reality we are not deserving of it at all. So, how can our need for God's sovereign choice in applying his grace humble us? How does this realization compel us to be in a submissive and teachable posture before Christ's cross?