What is the concept of merit in Catholic theology, and how do grace and merit relate to salvation?

• A. Merit is earned by human effort independent of grace.
• B. Grace is earned; merit is irrelevant.
• C. Good works alone guarantee salvation without grace.
• D. Merit is God's gift enabling human cooperation with grace; eternal life is a gift, but Christians can merit an increase of grace or heavenly reward by cooperating with grace through good works.

Answer: (D)

The main idea here is how grace and merit work together in Catholic teaching about salvation. Grace is God’s free gift that begins and sustains our right relationship with Him. Because grace is from God, any ability to do good and respond to Him comes from Him first. Merit, in this context, refers to the result of that cooperation with grace: when a person, moved by grace, freely cooperates with it through faith and good works, God both strengthens the soul and grants a greater participation in His life. Because the initial gift and the ongoing help come from God, eternal life remains a gift; it is not earned by our own unaided power. Yet by cooperating with grace, Christians can merit a greater increase of grace here on earth and a greater reward in heaven.

The best answer captures that partnership: God gives the gifts and enables us to cooperate with Him; salvation remains a gift, but our cooperation through good works, prompted by grace, can merit increases of grace and heavenly reward. The other ideas overlook the essential Catholic balance that grace makes cooperation possible, and that merit is the fruit of that grace-enabled cooperation rather than a totally independent human achievement.