Solus Christus. When we speak of Christ Alone, we are speaking of two things: (1) the exclusivity of Christ’s work (he is God incarnate; being both fully God and fully man). Jesus did that which only God could do and constantly pointed to himself as being God. He exclusively occupies the throne. And (2) the efficiency of Christ’s work (his work on the cross alone is sufficient to award salvation by grace to those who have faith).