What is the Difference between Grace Vs Mercy? This is a comparison and contrast essay that is based on the definition of two words. The first word is grace and the second is mercy. The definition of the word grace is good will or favor. When it comes to grace, the Lord always shows us good will and favor when it comes to all of us. Whereas, the definition of the word mercy is refraining from harming others. It also means showing kind or compassionate treatment. It also means the power to forgive. When it comes to the Lord God; He always shows everyone compassion and understanding towards us. I remember when I was a high school student, I became truant and missed over half of the 1981-82 school year. The reason why I became truant was because I was involved in street gangs and I also smoked marijuana. ...