Also know as solo Christo = by Christ Alone.
"Solus Christus is the teaching that Christ is the only mediator between God and man, and that there is salvation through no other....absolution reconciles the penitent with God directly through faith in Christ's forgiveness rather than with the priest and the church as mediating entities between the penitent and God." - Wikipedia
Colossians 1:13-20 - He has 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. He is the image of the invisible God, the firstborn of all creation. For by him all things were created, in heaven and on earth, visible and invisible, whether thrones or dominions or rulers or authorities—all things were created through him and for him. And he is before all things, and in him all things hold together. And he is the head of the body, the church. He is the beginning, the firstborn from the dead, that in everything he might be preeminent. For in him all the fullness of God was pleased to dwell, and through him to reconcile to himself all things, whether on earth or in heaven, making peace by the blood of his cross.
1 Timothy 2:5-6 - For there is one God, and there is one mediator between God and men, the man Christ Jesus, who gave himself as a ransom for all, which is the testimony given at the proper time.