It should be obvious that God will not give us grace while we are still proud. Why? Because He will allow no flesh to glory in His presence. When we cease doing what we cannot do then He begins to do what we cannot. The problem is that we still think we can do so many things. We must learn sooner, rather than later, that “apart from Me you can do nothing” (John 15:5). Nothing!
But it is human nature to try and do it ourselves. This human nature is the flesh. It prevents us from entering into Grace. God cannot save someone who is still trying to save themselves. Similarly, God cannot do what we are still trying to do. He will wait – weeks, months, or years – until we have exhausted our strength. When our strength is completely gone and we finally go to Him in weakness, He becomes our Strength and we find Grace is there to do the impossible. Then we know it was not us, but the Lord. All praise goes to Him, and we retain nothing for ourselves.