Sola gratia is one of the five solas propounded to summarise the Reformers' basic beliefs during the Protestant Reformation; it is a Latin term meaning grace alone. The emphasis was in contradistinction to the teaching of the Roman Catholic Church of the day.
During the Reformation, Protestant leaders and theologians generally believed the Roman Catholic view of the means of salvation to be a mixture of reliance upon the grace of God, and confidence in the merits of one's own works performed in love. The Reformers posited that salvation is entirely comprehended in God's gifts, (i.e. God's act of free grace) dispensed by the Holy Spirit according to the redemptive work of Jesus Christ alone. Consequently, they argued that a sinner is not accepted by God on account of the change wrought in the believer by God's grace, and indeed, that the believer is accepted without any regard for the merit of his works - for no one deserves salvation.