Grace. It really is amazing.

"You know you don’t understand God’s grace when you:

• Live with a vague sense of His disapproval.
  
• Feel sheepish bringing your needs before Him when you’ve just failed Him.
  
• Think of His grace as something that makes up the difference between the best you can do and what He expects from you.
  
• Feel you deserve an answer to prayer because of your hard work and sacrifice.
  
• Assume that 1 John 1:9 no longer applies to you now that you’ve sinned so many times you’ve used up all your credit.
  
• Feel more confident before Him if you’ve been ‘faithful’ with your Christian disciplines (prayer, quiet time, witnessing, etc.)
  
• Can’t honestly see yourself as ‘blameless’ in His eyes.
  
• Aren’t experiencing consistent peace and joy in your Christian life.
  
• Don’t really believe He likes you.
  
• Can think of someone you can look down on.
  
• Shy away from asking Him for things because you think it annoys Him.
  
• Assume you can do something to make Him love you more or less.
  
• Believe you’ve been called into His service because of your worthiness or qualifications."

from the book "Transforming Grace" by Jerry Bridges