By grace we mean God's extraordinary love for us. In most of life we're accustomed to earning approval from others. This is true at school, at work, in society, even at home—to a degree. We may feel that we have to act "just so" to be liked or loved. But God's love, or grace, is given without any regard for our goodness. It's unmerited, unconditional, and unending love.
As we come to accept this love, to entrust ourselves to it, and to ground our lives in it, we discover the wholeness that God has promised. This trust, as we've seen, is called faith. God takes the initiative in grace; but only as we respond through faith is the change wrought in us.
This is the great theme of the Protestant Reformers, as well as John Wesley and the Methodists who followed: We're saved by grace alone through faith alone. We're made whole and reconciled by the love of God as we receive it and trust in it.
Following Paul and Luther, John Wesley called this process justification. Justification is what happens when Christians abandon all those vain attempts to justify themselves before God, to be seen as "just" in God's eyes through religious and moral practices. It's a time when God's "justifying grace" is experienced and accepted, a time of pardon and forgiveness, of new peace and joy and love. Indeed, we're justified by God's grace through faith.
Justification is also a time of repentance—turning away from behaviors rooted in sin and toward actions that express God's love. In this conversion we can expect to receive assurance of our present salvation through the Holy Spirit "bearing witness with our spirit that we are children of God" (Romans 8:16).
—From United Methodist Member's Handbook, Revised by George Koehler (Discipleship Resources, 2006), pp. 78-79. Used by permission.