Good works of the most sincere believers are all imperfect, yet like their persons they are accepted through the mediation of JesusChrist (Col. 3:17), and so are rewarded; they have no merit intrinsically, but are rewarded wholly of grace.
The old objection against the doctrine of salvation by grace, that it does away with the necessity of good works, and lowers the sense of their importance (Romans 6), although it has been answered a thousand times, is still alleged by many. They say if men are not saved by works, then works are not necessary.
If the most moral of men are saved in the same way as the very chief of sinners, then good works are of no avail for receiving eternal life (see: Gospel). And more than this, if the grace of God is most clearly displayed in the salvation of the vilest of men, then the worse men are the better.
They spring from the principle of love to God. The moral character of an act is determined by the moral principle that prompts it. Faith and love in the heart are the essential elements of all true obedience.