Grace in mentioned 170 times in the Bible. Consider some of the ways it can be defined:
1. Grace is God's unmerited favor. That is, grace is God doing good for us that we do not deserve. In the Bible, grace and mercy are like two heads of the same coin. Mercy is God withholding judgment or evil that I deserve; grace is God giving me blessing or good that I do not deserve. Because of God's mercy, I do not receive the judgment of God against my sins; because of God's grace, I receive eternal life and a promise of heaven though I do not deserve them. Both mercy and grace come to me though the Lord Jesus Christ.
2. Grace can also be defined as God's sufficiency or God's fullness in the life of the believer. God told Paul, "My grace is sufficient for thee: for my strength is made perfect in weakness" (2 Corinthians 12:9). That is, the grace of God in Paul enabled him and empowered him in his weakness. Another verse states, "And God is able to make all grace abound toward you; that ye, always having all sufficiency in all things, may abound to every good work" (2 Corinthians 9:8). God's grace working in us supplies the sufficiency whereby we may abound to every good work. I like to call grace "God's enoughness." By this I mean that God is enough for us no matter what the situation we face.
This being the case, you can see that grace is first of all necessary for salvation. Ephesians 2:8 states, "For by grace are ye saved through faith; and that not of yourselves: it is the gift of God." One aspect of salvation is called justification. That is the act by which we are declared just (righteous) before God on the basis of the payment Jesus Christ made for our sin. The Bible clearly teaches that we are justified by the grace of God (Romans 3:24; Titus 3:7).
So, obviously, we need the grace of God. We need it first of all for salvation. Without the grace of God, we cannot have eternal life. However, we also need the grace of God for our daily walk with God. Jesus told us that we can do nothing without Him (John 15:5). But God provides daily strength through His grace working in us. We should seek this grace for living from Him. Then, we should believe that He will provide what He has promised and walk with assurance that His grace is working in us.
Original posting by David Reagan at learnthebible.org
I enjoy learning the origins of words. This next little bit about Grace is from Philip Yancey's book, "What's So Amazing About Grace?"
"I call Grace the last best word because every English usage I can find retains some of the glory of the original. Many people "say grace" before a meal, acknowledging daily bread as a gift from God. We are "grateful" for someone's kindness, "gratified" by good news, "congratulated" when successful, "gracious" in hosting friends. When a service pleases us, we leave a "gratuity". A composer of music may add "grace notes" to the score. Though not essential, they are "gratuitous" and add a flourish whose presence would be missed. In England, subjects address royalty as "Your Grace". Students may "receive a grace" exempting them from certain academic requirements. Parliament declares an "act of grace" to pardon a criminal. A magazine publisher may send "grace issues" free of charge (gratis) to tempt me to resubscribe. Credit card companies extend to customers a "grace period". These many uses of the English word "grace" convince me that it is indeed amazing. The word "grace" contains the essence of the gospel, as a drop of water can contain the image of the sun. I want to know more, to understand more, to experience more grace. And...I would far rather convey grace than explain it."