In Christianity, divine grace refers to the sovereign favor of God for humankind — especially in regard to salvation — irrespective of actions ("deeds"), earned worth, or proven goodness (in Christ); hence, free gift.
More broadly, divine grace refers to God's gifts to humankind, including life, creation, and salvation. More narrowly but more commonly, grace describes the means by which humans are saved from original sin and granted salvation. This latter concept of grace is of central importance in the theology of Christianity, as well as one of the most contentious issues in Christian sectarianism.
Grace is enabling power sufficient for progression. Grace divine is an indispensable gift from God for development, improvement, and character expansion. Without uniting with grace, there are certain limitations, weaknesses, flaws, impurities, and faults (i.e. carnality) humankind cannot overcome. Therefore, it is necessary to grow in grace - for added perfection, completeness, and flawlessness.