Jesus used the idea of ransom, or redemption when referring to his work on earth (; ). Christ's death and resurrection (triumph over Satan and death) provide justification for believers before God. His righteousness becomes theirs, and his death becomes an offering to God in their place, to pay for all of their sins. According to Protestants this justification is by faith alone – not through good deeds – and is a gift from God through Christ. According to Catholics and Eastern Orthodox we are justified by God's grace which is a free gift but is received through baptism initially, through the faith that works for love in the continuous life of a Christian and through the sacrament of reconciliation if the grace of justification is lost through grave sin.