Solo Christo! By Christ's Work Alone are We Saved

The Reformation called the church back to faith in Christ as the sole mediator between God and man. While the Roman church held that "there is a purgatory and that the souls there detained are helped by the intercessions of the faithful" and that "Saints are to be venerated and invoked;" "that their relics are to be venerated" -- the reformers taught that salvation was by Christ's work alone. As John Calvin said in the Institutes of the Christian Religion, "Christ stepped in, took the punishment upon himself and bore the judgment due to sinners. With his own blood he expiated the sins which made them enemies of God and thereby satisfied him...we look to Christ alone for divine favour and fatherly love!" Likewise the Heidelberg Catechism, Question 30 asks, "Do such then believe in Jesus the only Saviour who seek their salvation and happiness in saints, in themselves, or anywhere else? They do not; for though they boast of him in words yet in deeds they deny Jesus the only deliverer and Saviour: for one of these two things must be true that either Jesus is not a complete Saviour or that they who by a true faith receive this Saviour must find all things in him necessary to their salvation."

As the Scripture says,
There is one God, and one mediator also between God and men, the man Christ Jesus, who gave Himself as a ransom for all, the testimony borne at the proper time...For He delivered us from the domain of darkness, and transferred us to the kingdom of His beloved Son, in whom we have redemption, the forgiveness of sins. And He is the image of the invisible God, the first-born of all creation. For by Him all things were created, both in the heavens and on earth, visible and invisible, whether thrones or dominions or rulers or authorities-- all things have been created by Him and for Him. And He is before all things, and in Him all things hold together. He is also head of the body, the church; and He is the beginning, the first-born from the dead; so that He Himself might come to have first place in everything. (1TI 2:5-6; COL 1:13-18)